4.19-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 @@ -1938,7 +1938,7 @@ 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");