Add check for dma_set_mask() and return the error if it fails.
Fixes: d76271d22694 ("drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem")
Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
---
drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
index bab862484d42..068413be6527 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c
@@ -227,7 +227,9 @@ static int zynqmp_dpsub_probe(struct platform_device *pdev)
dpsub->dev = &pdev->dev;
platform_set_drvdata(pdev, dpsub);
- dma_set_mask(dpsub->dev, DMA_BIT_MASK(ZYNQMP_DISP_MAX_DMA_BIT));
+ ret = dma_set_mask(dpsub->dev, DMA_BIT_MASK(ZYNQMP_DISP_MAX_DMA_BIT));
+ if (ret)
+ return ret;
/* Try the reserved memory. Proceed if there's none. */
of_reserved_mem_device_init(&pdev->dev);
--
2.25.1
