From 1832fba7f9780aff67c96ad30f397c2d76141833 Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Wed, 7 Jun 2023 10:05:29 +0800 Subject: [PATCH] drm: xlnx: zynqmp_dpsub: Add missing check for dma_set_mask 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 Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen Signed-off-by: Laurent Pinchart --- 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 9d64a8d..88eb33acd 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); -- 2.7.4