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authorStefan Wahren <wahrenst@gmx.net>2019-07-16 20:15:18 +0300
committerVinod Koul <vkoul@kernel.org>2019-07-22 18:27:15 +0300
commit72503b25ee363827aafffc3e8d872e6a92a7e422 (patch)
treeb36bd0d99917e1034cb2aa82ba834392ef2d9291 /drivers/dma/bcm2835-dma.c
parentd2bfe7b5d182dad54aedb9dcdb736e8816ead1c3 (diff)
downloadlinux-72503b25ee363827aafffc3e8d872e6a92a7e422.tar.xz
dmaengine: bcm2835: Print error in case setting DMA mask fails
During enabling of the RPi 4, we found out that the driver doesn't provide a helpful error message in case setting DMA mask fails. So add one. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Link: https://lore.kernel.org/r/1563297318-4900-1-git-send-email-wahrenst@gmx.net Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/bcm2835-dma.c')
-rw-r--r--drivers/dma/bcm2835-dma.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
index 8101ff2f05c1..970f654611bd 100644
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -871,8 +871,10 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (rc)
+ if (rc) {
+ dev_err(&pdev->dev, "Unable to set DMA mask\n");
return rc;
+ }
od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL);
if (!od)