Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.20 029/145] mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan() | Date | Mon, 7 Jan 2019 13:31:06 +0100 |
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4.20-stable review patch. If anyone has any objections, please let me know.
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From: Boris Brezillon <boris.brezillon@bootlin.com>
commit 9b432630e0150b777c423fdef6a7b8d17dfa70b6 upstream.
Commit e1e6255c311b ("mtd: rawnand: omap2: convert driver to nand_scan()") moved part of the init code in the ->attach_chip hook and at the same time changed the struct device object passed to dma_request_chan() (&pdev->dev instead of pdev->dev.parent).
Fixes: e1e6255c311b ("mtd: rawnand: omap2: convert driver to nand_scan()") Reported-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/mtd/nand/raw/omap2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/nand/raw/omap2.c +++ b/drivers/mtd/nand/raw/omap2.c @@ -1944,7 +1944,7 @@ static int omap_nand_attach_chip(struct case NAND_OMAP_PREFETCH_DMA: dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - info->dma = dma_request_chan(dev, "rxtx"); + info->dma = dma_request_chan(dev->parent, "rxtx"); if (IS_ERR(info->dma)) { dev_err(dev, "DMA engine request failed\n");
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