From 1832fba7f9780aff67c96ad30f397c2d76141833 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 7 Jun 2023 10:05:29 +0800
Subject: [PATCH] drm: xlnx: zynqmp_dpsub: Add missing check for dma_set_mask
Git-commit: 1832fba7f9780aff67c96ad30f397c2d76141833
Patch-mainline: v6.6-rc1
References: git-fixes
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@iscas.ac.cn>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 9d64a8d98372..88eb33acd5f0 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);
--
2.35.3