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Subject[PATCH 4.9 119/191] mtd: rawnand: Pass a nand_chip object to nand_release()
Date
From: Boris Brezillon <boris.brezillon@bootlin.com>

[ Upstream commit 59ac276f22270fb2094910f9a734c17f41c25e70 ]

Let's make the raw NAND API consistent by patching all helpers to
take a nand_chip object instead of an mtd_info one.

Now is nand_release()'s turn.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/nand/ams-delta.c | 2 +-
drivers/mtd/nand/atmel_nand.c | 2 +-
drivers/mtd/nand/au1550nd.c | 2 +-
drivers/mtd/nand/bcm47xxnflash/main.c | 2 +-
drivers/mtd/nand/bf5xx_nand.c | 2 +-
drivers/mtd/nand/brcmnand/brcmnand.c | 2 +-
drivers/mtd/nand/cafe_nand.c | 2 +-
drivers/mtd/nand/cmx270_nand.c | 2 +-
drivers/mtd/nand/cs553x_nand.c | 2 +-
drivers/mtd/nand/davinci_nand.c | 2 +-
drivers/mtd/nand/denali.c | 2 +-
drivers/mtd/nand/diskonchip.c | 4 ++--
drivers/mtd/nand/docg4.c | 4 ++--
drivers/mtd/nand/fsl_elbc_nand.c | 2 +-
drivers/mtd/nand/fsl_ifc_nand.c | 2 +-
drivers/mtd/nand/fsl_upm.c | 2 +-
drivers/mtd/nand/fsmc_nand.c | 2 +-
drivers/mtd/nand/gpio.c | 2 +-
drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +-
drivers/mtd/nand/hisi504_nand.c | 5 ++---
drivers/mtd/nand/jz4740_nand.c | 4 ++--
drivers/mtd/nand/jz4780_nand.c | 4 ++--
drivers/mtd/nand/lpc32xx_mlc.c | 5 ++---
drivers/mtd/nand/lpc32xx_slc.c | 5 ++---
drivers/mtd/nand/mpc5121_nfc.c | 2 +-
drivers/mtd/nand/mtk_nand.c | 4 ++--
drivers/mtd/nand/mxc_nand.c | 2 +-
drivers/mtd/nand/nand_base.c | 8 ++++----
drivers/mtd/nand/nandsim.c | 4 ++--
drivers/mtd/nand/ndfc.c | 2 +-
drivers/mtd/nand/nuc900_nand.c | 2 +-
drivers/mtd/nand/omap2.c | 2 +-
drivers/mtd/nand/orion_nand.c | 5 ++---
drivers/mtd/nand/pasemi_nand.c | 2 +-
drivers/mtd/nand/plat_nand.c | 4 ++--
drivers/mtd/nand/pxa3xx_nand.c | 2 +-
drivers/mtd/nand/qcom_nandc.c | 4 ++--
drivers/mtd/nand/r852.c | 4 ++--
drivers/mtd/nand/s3c2410.c | 2 +-
drivers/mtd/nand/sh_flctl.c | 2 +-
drivers/mtd/nand/sharpsl.c | 4 ++--
drivers/mtd/nand/socrates_nand.c | 5 ++---
drivers/mtd/nand/sunxi_nand.c | 4 ++--
drivers/mtd/nand/tmio_nand.c | 4 ++--
drivers/mtd/nand/txx9ndfmc.c | 2 +-
drivers/mtd/nand/vf610_nfc.c | 2 +-
drivers/mtd/nand/xway_nand.c | 4 ++--
include/linux/mtd/nand.h | 6 ++----
48 files changed, 70 insertions(+), 77 deletions(-)

diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 78e12cc8bac2f..02ec2d183607f 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -264,7 +264,7 @@ static int ams_delta_cleanup(struct platform_device *pdev)
void __iomem *io_base = platform_get_drvdata(pdev);

/* Release resources, unregister device */
- nand_release(ams_delta_mtd);
+ nand_release(mtd_to_nand(ams_delta_mtd));

gpio_free_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio));
gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 68b9160108c9f..45495bc1a70e2 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -2336,7 +2336,7 @@ static int atmel_nand_remove(struct platform_device *pdev)
struct atmel_nand_host *host = platform_get_drvdata(pdev);
struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);

- nand_release(mtd);
+ nand_release(&host->nand_chip);

atmel_nand_disable(host);

diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c
index 9bf6d9915694e..a0e7789131dfc 100644
--- a/drivers/mtd/nand/au1550nd.c
+++ b/drivers/mtd/nand/au1550nd.c
@@ -496,7 +496,7 @@ static int au1550nd_remove(struct platform_device *pdev)
struct au1550nd_ctx *ctx = platform_get_drvdata(pdev);
struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0);

- nand_release(nand_to_mtd(&ctx->chip));
+ nand_release(&ctx->chip);
iounmap(ctx->base);
release_mem_region(r->start, 0x1000);
kfree(ctx);
diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c
index fb31429b70a9a..d796941608457 100644
--- a/drivers/mtd/nand/bcm47xxnflash/main.c
+++ b/drivers/mtd/nand/bcm47xxnflash/main.c
@@ -65,7 +65,7 @@ static int bcm47xxnflash_remove(struct platform_device *pdev)
{
struct bcm47xxnflash *nflash = platform_get_drvdata(pdev);

- nand_release(nand_to_mtd(&nflash->nand_chip));
+ nand_release(&nflash->nand_chip);

return 0;
}
diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index 3962f55bd0349..020bb350a2db2 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -688,7 +688,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev)
* and their partitions, then go through freeing the
* resources used
*/
- nand_release(nand_to_mtd(&info->chip));
+ nand_release(&info->chip);

peripheral_free_list(bfin_nfc_pin_req);
bf5xx_nand_dma_remove(info);
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index 1291492a1cef1..fbee81909d38a 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -2595,7 +2595,7 @@ int brcmnand_remove(struct platform_device *pdev)
struct brcmnand_host *host;

list_for_each_entry(host, &ctrl->host_list, node)
- nand_release(nand_to_mtd(&host->chip));
+ nand_release(&host->chip);

clk_disable_unprepare(ctrl->clk);

diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 0b0c93702abbd..c16e740c01c38 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -825,7 +825,7 @@ static void cafe_nand_remove(struct pci_dev *pdev)
/* Disable NAND IRQ in global IRQ mask register */
cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK);
free_irq(pdev->irq, mtd);
- nand_release(mtd);
+ nand_release(chip);
free_rs(cafe->rs);
pci_iounmap(pdev, cafe->mmio);
dma_free_coherent(&cafe->pdev->dev,
diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c
index 49133783ca536..b9667204e711a 100644
--- a/drivers/mtd/nand/cmx270_nand.c
+++ b/drivers/mtd/nand/cmx270_nand.c
@@ -230,7 +230,7 @@ module_init(cmx270_init);
static void __exit cmx270_cleanup(void)
{
/* Release resources, unregister device */
- nand_release(cmx270_nand_mtd);
+ nand_release(mtd_to_nand(cmx270_nand_mtd));

gpio_free(GPIO_NAND_RB);
gpio_free(GPIO_NAND_CS);
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index a65e4e0f57a1c..4779dfec3576f 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -339,7 +339,7 @@ static void __exit cs553x_cleanup(void)
mmio_base = this->IO_ADDR_R;

/* Release resources, unregister device */
- nand_release(mtd);
+ nand_release(this);
kfree(mtd->name);
cs553x_mtd[i] = NULL;

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 27fa8b87cd5fc..c7f535676e49f 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -840,7 +840,7 @@ static int nand_davinci_remove(struct platform_device *pdev)
ecc4_busy = false;
spin_unlock_irq(&davinci_nand_lock);

- nand_release(nand_to_mtd(&info->chip));
+ nand_release(&info->chip);

clk_disable_unprepare(info->clk);

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 0476ae8776d93..982cbc7f412f4 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1655,7 +1655,7 @@ void denali_remove(struct denali_nand_info *denali)
*/
int bufsize = mtd->writesize + mtd->oobsize;

- nand_release(mtd);
+ nand_release(&denali->nand);
denali_irq_cleanup(denali->irq, denali);
dma_unmap_single(denali->dev, denali->buf.dma_buf, bufsize,
DMA_BIDIRECTIONAL);
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index a023ab9e9cbf6..b42d618553be8 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -1611,7 +1611,7 @@ static int __init doc_probe(unsigned long physadr)
/* nand_release will call mtd_device_unregister, but we
haven't yet added it. This is handled without incident by
mtd_device_unregister, as far as I can tell. */
- nand_release(mtd);
+ nand_release(nand);
kfree(nand);
goto fail;
}
@@ -1644,7 +1644,7 @@ static void release_nanddoc(void)
doc = nand_get_controller_data(nand);

nextmtd = doc->nextdoc;
- nand_release(mtd);
+ nand_release(nand);
iounmap(doc->virtadr);
release_mem_region(doc->physadr, DOC_IOREMAP_LEN);
kfree(nand);
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 7af2a3cd949ee..5798cd87f340b 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -1374,7 +1374,7 @@ static int __init probe_docg4(struct platform_device *pdev)
return 0;

fail:
- nand_release(mtd); /* deletes partitions and mtd devices */
+ nand_release(nand); /* deletes partitions and mtd devices */
free_bch(doc->bch);
kfree(nand);

@@ -1387,7 +1387,7 @@ static int __init probe_docg4(struct platform_device *pdev)
static int __exit cleanup_docg4(struct platform_device *pdev)
{
struct docg4_priv *doc = platform_get_drvdata(pdev);
- nand_release(doc->mtd);
+ nand_release(mtd_to_nand(doc->mtd));
free_bch(doc->bch);
kfree(mtd_to_nand(doc->mtd));
iounmap(doc->virtadr);
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 113f76e599372..2fc4f2ab89ff5 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -811,7 +811,7 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv)
struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
struct mtd_info *mtd = nand_to_mtd(&priv->chip);

- nand_release(mtd);
+ nand_release(&priv->chip);

kfree(mtd->name);

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 4c3b986dd74d1..cf0fccb5908e7 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -918,7 +918,7 @@ static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
{
struct mtd_info *mtd = nand_to_mtd(&priv->chip);

- nand_release(mtd);
+ nand_release(&priv->chip);

kfree(mtd->name);

diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index d85fa2555b683..0b4d2489cc716 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -326,7 +326,7 @@ static int fun_remove(struct platform_device *ofdev)
struct mtd_info *mtd = nand_to_mtd(&fun->chip);
int i;

- nand_release(mtd);
+ nand_release(&fun->chip);
kfree(mtd->name);

for (i = 0; i < fun->mchip_count; i++) {
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index d4f454a4b35e7..92737deb7845d 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -1038,7 +1038,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
struct fsmc_nand_data *host = platform_get_drvdata(pdev);

if (host) {
- nand_release(nand_to_mtd(&host->nand));
+ nand_release(&host->nand);

if (host->mode == USE_DMA_ACCESS) {
dma_release_channel(host->write_dma_chan);
diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c
index 6317f6836022e..c7461ca1c1a69 100644
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -197,7 +197,7 @@ static int gpio_nand_remove(struct platform_device *pdev)
{
struct gpiomtd *gpiomtd = platform_get_drvdata(pdev);

- nand_release(nand_to_mtd(&gpiomtd->nand_chip));
+ nand_release(&gpiomtd->nand_chip);

if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index d9dab42758590..f4a99e91c2500 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1930,7 +1930,7 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this)

static void gpmi_nand_exit(struct gpmi_nand_data *this)
{
- nand_release(nand_to_mtd(&this->nand));
+ nand_release(&this->nand);
gpmi_free_dma_buffer(this);
}

diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c
index 9432546f4cd47..6c96d9d29a310 100644
--- a/drivers/mtd/nand/hisi504_nand.c
+++ b/drivers/mtd/nand/hisi504_nand.c
@@ -823,7 +823,7 @@ static int hisi_nfc_probe(struct platform_device *pdev)
return 0;

err_mtd:
- nand_release(mtd);
+ nand_release(chip);
err_res:
return ret;
}
@@ -831,9 +831,8 @@ static int hisi_nfc_probe(struct platform_device *pdev)
static int hisi_nfc_remove(struct platform_device *pdev)
{
struct hinfc_host *host = platform_get_drvdata(pdev);
- struct mtd_info *mtd = nand_to_mtd(&host->chip);

- nand_release(mtd);
+ nand_release(&host->chip);

return 0;
}
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index 5551c36adbdf1..6f323858d51a1 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -499,7 +499,7 @@ static int jz_nand_probe(struct platform_device *pdev)
return 0;

err_nand_release:
- nand_release(mtd);
+ nand_release(chip);
err_unclaim_banks:
while (chipnr--) {
unsigned char bank = nand->banks[chipnr];
@@ -520,7 +520,7 @@ static int jz_nand_remove(struct platform_device *pdev)
struct jz_nand *nand = platform_get_drvdata(pdev);
size_t i;

- nand_release(nand_to_mtd(&nand->chip));
+ nand_release(&nand->chip);

/* Deassert and disable all chips */
writel(0, nand->base + JZ_REG_NAND_CTRL);
diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c
index a39bb70175eea..e8aaf2543946c 100644
--- a/drivers/mtd/nand/jz4780_nand.c
+++ b/drivers/mtd/nand/jz4780_nand.c
@@ -293,7 +293,7 @@ static int jz4780_nand_init_chip(struct platform_device *pdev,

ret = mtd_device_register(mtd, NULL, 0);
if (ret) {
- nand_release(mtd);
+ nand_release(chip);
return ret;
}

@@ -308,7 +308,7 @@ static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc)

while (!list_empty(&nfc->chips)) {
chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list);
- nand_release(nand_to_mtd(&chip->chip));
+ nand_release(&chip->chip);
list_del(&chip->chip_list);
}
}
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index bc6e49af063a2..839f8f4ace9e6 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -805,7 +805,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
if (!res)
return res;

- nand_release(mtd);
+ nand_release(nand_chip);

err_exit4:
free_irq(host->irq, host);
@@ -828,9 +828,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
static int lpc32xx_nand_remove(struct platform_device *pdev)
{
struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
- struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);

- nand_release(mtd);
+ nand_release(&host->nand_chip);
free_irq(host->irq, host);
if (use_dma)
dma_release_channel(host->dma_chan);
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index 8d3edc34958e7..0b5fa254ea60a 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -940,7 +940,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
if (!res)
return res;

- nand_release(mtd);
+ nand_release(chip);

err_exit3:
dma_release_channel(host->dma_chan);
@@ -959,9 +959,8 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
{
uint32_t tmp;
struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
- struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);

- nand_release(mtd);
+ nand_release(&host->nand_chip);
dma_release_channel(host->dma_chan);

/* Force CE high */
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index 7eacb2f545f50..9662f8fe47137 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -827,7 +827,7 @@ static int mpc5121_nfc_remove(struct platform_device *op)
struct device *dev = &op->dev;
struct mtd_info *mtd = dev_get_drvdata(dev);

- nand_release(mtd);
+ nand_release(mtd_to_nand(mtd));
mpc5121_nfc_free(dev, mtd);

return 0;
diff --git a/drivers/mtd/nand/mtk_nand.c b/drivers/mtd/nand/mtk_nand.c
index ca95ae00215ec..fadc755e55f82 100644
--- a/drivers/mtd/nand/mtk_nand.c
+++ b/drivers/mtd/nand/mtk_nand.c
@@ -1327,7 +1327,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
ret = mtd_device_parse_register(mtd, NULL, NULL, NULL, 0);
if (ret) {
dev_err(dev, "mtd parse partition error\n");
- nand_release(mtd);
+ nand_release(nand);
return ret;
}

@@ -1450,7 +1450,7 @@ static int mtk_nfc_remove(struct platform_device *pdev)
while (!list_empty(&nfc->chips)) {
chip = list_first_entry(&nfc->chips, struct mtk_nfc_nand_chip,
node);
- nand_release(nand_to_mtd(&chip->nand));
+ nand_release(&chip->nand);
list_del(&chip->node);
}

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 5c44eb57885b9..deb3cbadbc519 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1838,7 +1838,7 @@ static int mxcnd_remove(struct platform_device *pdev)
{
struct mxc_nand_host *host = platform_get_drvdata(pdev);

- nand_release(nand_to_mtd(&host->nand));
+ nand_release(&host->nand);
if (host->clk_act)
clk_disable_unprepare(host->clk);

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 5fb45161789ce..bdf40c090acdc 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -4941,12 +4941,12 @@ EXPORT_SYMBOL_GPL(nand_cleanup);
/**
* nand_release - [NAND Interface] Unregister the MTD device and free resources
* held by the NAND device
- * @mtd: MTD device structure
+ * @chip: NAND chip object
*/
-void nand_release(struct mtd_info *mtd)
+void nand_release(struct nand_chip *chip)
{
- mtd_device_unregister(mtd);
- nand_cleanup(mtd_to_nand(mtd));
+ mtd_device_unregister(nand_to_mtd(chip));
+ nand_cleanup(chip);
}
EXPORT_SYMBOL_GPL(nand_release);

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 1eb934414eb58..fe593f2f1ec7d 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -2394,7 +2394,7 @@ static int __init ns_init_module(void)

err_exit:
free_nandsim(nand);
- nand_release(nsmtd);
+ nand_release(chip);
for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i)
kfree(nand->partitions[i].name);
error:
@@ -2417,7 +2417,7 @@ static void __exit ns_cleanup_module(void)

nandsim_debugfs_remove(ns);
free_nandsim(ns); /* Free nandsim private resources */
- nand_release(nsmtd); /* Unregister driver */
+ nand_release(chip); /* Unregister driver */
for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i)
kfree(ns->partitions[i].name);
kfree(mtd_to_nand(nsmtd)); /* Free other structures */
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 28e6118362f7e..d03b47d2664b0 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -258,7 +258,7 @@ static int ndfc_remove(struct platform_device *ofdev)
struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev);
struct mtd_info *mtd = nand_to_mtd(&ndfc->chip);

- nand_release(mtd);
+ nand_release(&ndfc->chip);
kfree(mtd->name);

return 0;
diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index 8f64011d32ef2..f7f54b46f246b 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -284,7 +284,7 @@ static int nuc900_nand_remove(struct platform_device *pdev)
{
struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev);

- nand_release(nand_to_mtd(&nuc900_nand->chip));
+ nand_release(&nuc900_nand->chip);
clk_disable(nuc900_nand->clk);

return 0;
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index f3a516b3f108a..62c0ca437c91e 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -2307,7 +2307,7 @@ static int omap_nand_remove(struct platform_device *pdev)
}
if (info->dma)
dma_release_channel(info->dma);
- nand_release(mtd);
+ nand_release(nand_chip);
return 0;
}

diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index af2f09135fb0e..cfd53f0ba6c31 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -167,7 +167,7 @@ static int __init orion_nand_probe(struct platform_device *pdev)
mtd->name = "orion_nand";
ret = mtd_device_register(mtd, board->parts, board->nr_parts);
if (ret) {
- nand_release(mtd);
+ nand_release(nc);
goto no_dev;
}

@@ -184,9 +184,8 @@ static int orion_nand_remove(struct platform_device *pdev)
{
struct orion_nand_info *info = platform_get_drvdata(pdev);
struct nand_chip *chip = &info->chip;
- struct mtd_info *mtd = nand_to_mtd(chip);

- nand_release(mtd);
+ nand_release(chip);

if (!IS_ERR(info->clk))
clk_disable_unprepare(info->clk);
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index 80c98eef44d90..3300e43e2cb9f 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -194,7 +194,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev)
chip = mtd_to_nand(pasemi_nand_mtd);

/* Release resources, unregister device */
- nand_release(pasemi_nand_mtd);
+ nand_release(chip);

release_region(lpcctl, 4);

diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 415a53a0deeb3..245efb0f83e26 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -100,7 +100,7 @@ static int plat_nand_probe(struct platform_device *pdev)
if (!err)
return err;

- nand_release(mtd);
+ nand_release(&data->chip);
out:
if (pdata->ctrl.remove)
pdata->ctrl.remove(pdev);
@@ -115,7 +115,7 @@ static int plat_nand_remove(struct platform_device *pdev)
struct plat_nand_data *data = platform_get_drvdata(pdev);
struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);

- nand_release(nand_to_mtd(&data->chip));
+ nand_release(&data->chip);
if (pdata->ctrl.remove)
pdata->ctrl.remove(pdev);

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 3b8911cd3a199..46f13f7e54da0 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1907,7 +1907,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
clk_disable_unprepare(info->clk);

for (cs = 0; cs < pdata->num_cs; cs++)
- nand_release(nand_to_mtd(&info->host[cs]->chip));
+ nand_release(&info->host[cs]->chip);
return 0;
}

diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c
index 9f6c9a34b9eb6..1594770987fdb 100644
--- a/drivers/mtd/nand/qcom_nandc.c
+++ b/drivers/mtd/nand/qcom_nandc.c
@@ -2163,7 +2163,7 @@ static int qcom_nandc_probe(struct platform_device *pdev)

err_cs_init:
list_for_each_entry(host, &nandc->host_list, node)
- nand_release(nand_to_mtd(&host->chip));
+ nand_release(&host->chip);
err_setup:
clk_disable_unprepare(nandc->aon_clk);
err_aon_clk:
@@ -2180,7 +2180,7 @@ static int qcom_nandc_remove(struct platform_device *pdev)
struct qcom_nand_host *host;

list_for_each_entry(host, &nandc->host_list, node)
- nand_release(nand_to_mtd(&host->chip));
+ nand_release(&host->chip);

qcom_nandc_unalloc(nandc);

diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index fc9287af46140..2cfa549413952 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -656,7 +656,7 @@ static int r852_register_nand_device(struct r852_device *dev)
dev->card_registred = 1;
return 0;
error3:
- nand_release(mtd);
+ nand_release(dev->chip);
error1:
/* Force card redetect */
dev->card_detected = 0;
@@ -675,7 +675,7 @@ static void r852_unregister_nand_device(struct r852_device *dev)
return;

device_remove_file(&mtd->dev, &dev_attr_media_type);
- nand_release(mtd);
+ nand_release(dev->chip);
r852_engine_disable(dev);
dev->card_registred = 0;
}
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index d459c19d78de3..be9c145b743c9 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -768,7 +768,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)

for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) {
pr_debug("releasing mtd %d (%p)\n", mtdno, ptr);
- nand_release(nand_to_mtd(&ptr->chip));
+ nand_release(&ptr->chip);
}
}

diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index d6c013f93b8c0..31f98acdba073 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -1229,7 +1229,7 @@ static int flctl_remove(struct platform_device *pdev)
struct sh_flctl *flctl = platform_get_drvdata(pdev);

flctl_release_dma(flctl);
- nand_release(nand_to_mtd(&flctl->chip));
+ nand_release(&flctl->chip);
pm_runtime_disable(&pdev->dev);

return 0;
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index 064ca1757589a..70e28bfeb840f 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -192,7 +192,7 @@ static int sharpsl_nand_probe(struct platform_device *pdev)
return 0;

err_add:
- nand_release(mtd);
+ nand_release(this);

err_scan:
iounmap(sharpsl->io);
@@ -210,7 +210,7 @@ static int sharpsl_nand_remove(struct platform_device *pdev)
struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev);

/* Release resources, unregister device */
- nand_release(nand_to_mtd(&sharpsl->chip));
+ nand_release(&sharpsl->chip);

iounmap(sharpsl->io);

diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index 888fd314c62a2..f633ff1ebc0ab 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -203,7 +203,7 @@ static int socrates_nand_probe(struct platform_device *ofdev)
if (!res)
return res;

- nand_release(mtd);
+ nand_release(nand_chip);

out:
iounmap(host->io_base);
@@ -216,9 +216,8 @@ static int socrates_nand_probe(struct platform_device *ofdev)
static int socrates_nand_remove(struct platform_device *ofdev)
{
struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev);
- struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);

- nand_release(mtd);
+ nand_release(&host->nand_chip);

iounmap(host->io_base);

diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index 886355bfa7617..ddf3e24cc2898 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -2108,7 +2108,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc,
ret = mtd_device_register(mtd, NULL, 0);
if (ret) {
dev_err(dev, "failed to register mtd device: %d\n", ret);
- nand_release(mtd);
+ nand_release(nand);
return ret;
}

@@ -2147,7 +2147,7 @@ static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc)
while (!list_empty(&nfc->chips)) {
chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip,
node);
- nand_release(nand_to_mtd(&chip->nand));
+ nand_release(&chip->nand);
sunxi_nand_ecc_cleanup(&chip->nand.ecc);
list_del(&chip->node);
}
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 08b30549ec0a0..1deb5229db15d 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -446,7 +446,7 @@ static int tmio_probe(struct platform_device *dev)
if (!retval)
return retval;

- nand_release(mtd);
+ nand_release(nand_chip);

err_irq:
tmio_hw_stop(dev, tmio);
@@ -457,7 +457,7 @@ static int tmio_remove(struct platform_device *dev)
{
struct tmio_nand *tmio = platform_get_drvdata(dev);

- nand_release(nand_to_mtd(&tmio->chip));
+ nand_release(&tmio->chip);
tmio_hw_stop(dev, tmio);
return 0;
}
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index 0a14fda2e41bf..f2ba55b0a1e9d 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -390,7 +390,7 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev)
chip = mtd_to_nand(mtd);
txx9_priv = nand_get_controller_data(chip);

- nand_release(mtd);
+ nand_release(chip);
kfree(txx9_priv->mtdname);
kfree(txx9_priv);
}
diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c
index ddc629e3f63a6..ec004e0a94a32 100644
--- a/drivers/mtd/nand/vf610_nfc.c
+++ b/drivers/mtd/nand/vf610_nfc.c
@@ -795,7 +795,7 @@ static int vf610_nfc_remove(struct platform_device *pdev)
struct mtd_info *mtd = platform_get_drvdata(pdev);
struct vf610_nfc *nfc = mtd_to_nfc(mtd);

- nand_release(mtd);
+ nand_release(mtd_to_nand(mtd));
clk_disable_unprepare(nfc->clk);
return 0;
}
diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c
index 895101a5e6864..d374a0007960a 100644
--- a/drivers/mtd/nand/xway_nand.c
+++ b/drivers/mtd/nand/xway_nand.c
@@ -211,7 +211,7 @@ static int xway_nand_probe(struct platform_device *pdev)

err = mtd_device_register(mtd, NULL, 0);
if (err)
- nand_release(mtd);
+ nand_release(&data->chip);

return err;
}
@@ -223,7 +223,7 @@ static int xway_nand_remove(struct platform_device *pdev)
{
struct xway_nand_data *data = platform_get_drvdata(pdev);

- nand_release(nand_to_mtd(&data->chip));
+ nand_release(&data->chip);

return 0;
}
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index d8905a229f348..573e744223a24 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -24,6 +24,7 @@
#include <linux/mtd/flashchip.h>
#include <linux/mtd/bbm.h>

+struct nand_chip;
struct mtd_info;
struct nand_flash_dev;
struct device_node;
@@ -39,7 +40,7 @@ int nand_scan_ident(struct mtd_info *mtd, int max_chips,
int nand_scan_tail(struct mtd_info *mtd);

/* Unregister the MTD device and free resources held by the NAND device */
-void nand_release(struct mtd_info *mtd);
+void nand_release(struct nand_chip *chip);

/* Internal helper for board drivers which need to override command function */
void nand_wait_ready(struct mtd_info *mtd);
@@ -219,9 +220,6 @@ enum nand_ecc_algo {
#define NAND_CI_CELLTYPE_MSK 0x0C
#define NAND_CI_CELLTYPE_SHIFT 2

-/* Keep gcc happy */
-struct nand_chip;
-
/* ONFI features */
#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
--
2.25.1
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