[PATCH AUTOSEL 4.14 2/8] dmaengine: ti: omap-dma: Add cleanup in omap_dma_probe()

From: Sasha Levin
Date: Mon Sep 09 2019 - 18:18:00 EST


From: Wenwen Wang <wenwen@xxxxxxxxxx>

[ Upstream commit 962411b05a6d3342aa649e39cda1704c1fc042c6 ]

If devm_request_irq() fails to disable all interrupts, no cleanup is
performed before retuning the error. To fix this issue, invoke
omap_dma_free() to do the cleanup.

Signed-off-by: Wenwen Wang <wenwen@xxxxxxxxxx>
Acked-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
Link: https://lore.kernel.org/r/1565938570-7528-1-git-send-email-wenwen@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/dma/omap-dma.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index 8c1665c8fe33a..14b560facf779 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -1534,8 +1534,10 @@ static int omap_dma_probe(struct platform_device *pdev)

rc = devm_request_irq(&pdev->dev, irq, omap_dma_irq,
IRQF_SHARED, "omap-dma-engine", od);
- if (rc)
+ if (rc) {
+ omap_dma_free(od);
return rc;
+ }
}

if (omap_dma_glbl_read(od, CAPS_0) & CAPS_0_SUPPORT_LL123)
--
2.20.1