[PATCH] dmaengine: stm32-mdma: Add missing check for device_property_read_u32_array
From: Chen Ni <hidden>
Date: 2026-01-28 04:23:55
Also in:
dmaengine, lkml
Subsystem:
dma generic offload engine subsystem, stm32 dma drivers, the rest · Maintainers:
Vinod Koul, Amélie Delaunay, Linus Torvalds
Add check for the return value of device_property_read_u32_array() and return the error if it fails in order to catch the error. Signed-off-by: Chen Ni <redacted> --- drivers/dma/stm32/stm32-mdma.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/stm32/stm32-mdma.c b/drivers/dma/stm32/stm32-mdma.c
index b87d41b234df..f833724cf42c 100644
--- a/drivers/dma/stm32/stm32-mdma.c
+++ b/drivers/dma/stm32/stm32-mdma.c@@ -1630,9 +1630,11 @@ static int stm32_mdma_probe(struct platform_device *pdev) dmadev->nr_channels = nr_channels; dmadev->nr_requests = nr_requests; - device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks", - dmadev->ahb_addr_masks, - count); + ret = device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks", + dmadev->ahb_addr_masks, + count); + if (ret) + return ret; dmadev->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(dmadev->base))
--
2.25.1