From 44386067682818822fee1b166c4eb875e56cb65d Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Wed, 29 Nov 2023 17:00:00 +0800 Subject: [PATCH] dmaengine: fsl-edma: fix wrong pointer check in fsl_edma3_attach_pd() [ Upstream commit bffa7218dcddb80e7f18dfa545dd4b359b11dd93 ] device_link_add() returns NULL pointer not PTR_ERR() when it fails, so replace the IS_ERR() check with NULL pointer check. Fixes: 72f5801a4e2b ("dmaengine: fsl-edma: integrate v3 support") Signed-off-by: Yang Yingliang Link: https://lore.kernel.org/r/20231129090000.841440-1-yangyingliang@huaweicloud.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/fsl-edma-main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index db6cd84..00cb70a 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -400,9 +400,8 @@ static int fsl_edma3_attach_pd(struct platform_device *pdev, struct fsl_edma_eng link = device_link_add(dev, pd_chan, DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE); - if (IS_ERR(link)) { - dev_err(dev, "Failed to add device_link to %d: %ld\n", i, - PTR_ERR(link)); + if (!link) { + dev_err(dev, "Failed to add device_link to %d\n", i); return -EINVAL; } -- 2.7.4