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Subject[PATCH 5/5] mtd: nand: davinci: Use devm_ioremap_shared_resource()
Simplify error handling by using devm_ioremap_shared_resource().

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
---
drivers/mtd/nand/davinci_nand.c | 24 +++++++-----------------
1 file changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index ccc8c43abcff..9b6f06b177b9 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -612,10 +612,8 @@ static int nand_davinci_probe(struct platform_device *pdev)
{
struct davinci_nand_pdata *pdata;
struct davinci_nand_info *info;
- struct resource *res1;
- struct resource *res2;
+ struct resource *res;
void __iomem *vaddr;
- void __iomem *base;
int ret;
uint32_t val;
struct mtd_info *mtd;
@@ -638,14 +636,8 @@ static int nand_davinci_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, info);

- res1 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- res2 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (!res1 || !res2) {
- dev_err(&pdev->dev, "resource missing\n");
- return -EINVAL;
- }
-
- vaddr = devm_ioremap_resource(&pdev->dev, res1);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ vaddr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(vaddr))
return PTR_ERR(vaddr);

@@ -655,14 +647,12 @@ static int nand_davinci_probe(struct platform_device *pdev)
* by AEMIF, so we cannot request it twice, just ioremap.
* The AEMIF and NAND drivers not use the same registers in this range.
*/
- base = devm_ioremap(&pdev->dev, res2->start, resource_size(res2));
- if (!base) {
- dev_err(&pdev->dev, "ioremap failed for resource %pR\n", res2);
- return -EADDRNOTAVAIL;
- }
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ info->base = devm_ioremap_shared_resource(&pdev->dev, res);
+ if (IS_ERR(info->base))
+ return PTR_ERR(info->base);

info->dev = &pdev->dev;
- info->base = base;
info->vaddr = vaddr;

mtd = nand_to_mtd(&info->chip);
--
2.15.1
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