Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1276176 > unrolled thread
| Started by | M'boumba Cedric Madianga <cedric.madianga@gmail.com> |
|---|---|
| First post | 2015-11-24 10:00 +0100 |
| Last post | 2015-11-24 10:00 +0100 |
| Articles | 1 — 1 participant |
Back to article view | Back to linux.kernel
[PATCH] dmaengine: stm32-dma: Fix static checker warning M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2015-11-24 10:00 +0100
| From | M'boumba Cedric Madianga <cedric.madianga@gmail.com> |
|---|---|
| Date | 2015-11-24 10:00 +0100 |
| Subject | [PATCH] dmaengine: stm32-dma: Fix static checker warning |
| Message-ID | <qyhCa-5Ot-11@gated-at.bofh.it> |
This patch fix an unchecked dereference warning by returning operation
not permitted when stm32_dma_start_transfer() does not succeed to allocate
a virtual channel descriptor.
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
---
drivers/dma/stm32-dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index 12f3a3e..0214bcf 100644
--- a/drivers/dma/stm32-dma.c
+++ b/drivers/dma/stm32-dma.c
@@ -437,7 +437,7 @@ static int stm32_dma_start_transfer(struct stm32_dma_chan *chan)
if (!chan->desc) {
vdesc = vchan_next_desc(&chan->vchan);
if (!vdesc)
- return 0;
+ return -EPERM;
chan->desc = to_stm32_dma_desc(vdesc);
chan->next_sg = 0;
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Back to top | Article view | linux.kernel
csiph-web