[PATCH v2] mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan() - Linux-stable-mirror

13 Dec 2018

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
---
Changes in v2:
- Fix the prefix
---
 drivers/mtd/nand/raw/omap2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c
index 886d05c391ef..68e8b9f7f372 100644
--- 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 nand_chip *chip)
    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");
-- 
2.17.1


    