On 09/05/2014 05:04 PM, Krzysztof Kozlowski wrote:
Do not dereference the 'struct pl330_thread *thrd' before the check for
non-NULL value.
This fixes following warning:
drivers/dma/pl330.c:1376 pl330_submit_req() warn: variable dereferenced before
check 'thrd' (see line 1367)
I think we can just drop that whole line of checks, none of them will ever
be true.
Signed-off-by: Krzysztof Kozlowski <k.kozlow...@samsung.com>
---
drivers/dma/pl330.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index d5149aacd2fe..47d82070848d 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1364,7 +1364,7 @@ static inline u32 _prepare_ccr(const struct pl330_reqcfg
*rqc)
static int pl330_submit_req(struct pl330_thread *thrd,
struct dma_pl330_desc *desc)
{
- struct pl330_dmac *pl330 = thrd->dmac;
+ struct pl330_dmac *pl330;
struct _xfer_spec xs;
unsigned long flags;
void __iomem *regs;
@@ -1376,6 +1376,7 @@ static int pl330_submit_req(struct pl330_thread *thrd,
if (!desc || !thrd || thrd->free)
return -EINVAL;
+ pl330 = thrd->dmac;
regs = thrd->dmac->base;
if (pl330->state == DYING
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
