On 2017/1/9 5:55, SF Markus Elfring wrote:
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 8 Jan 2017 22:10:40 +0100
* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
* Replace the specification of a data structure by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.
Reviewed-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/core/queue.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index a6496d8027bc..b1986622c60e 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -152,7 +152,7 @@ static struct scatterlist *mmc_alloc_sg(int sg_len, int *err)
{
struct scatterlist *sg;
- sg = kmalloc(sizeof(struct scatterlist)*sg_len, GFP_KERNEL);
+ sg = kmalloc_array(sg_len, sizeof(*sg), GFP_KERNEL);
if (!sg)
*err = -ENOMEM;
else {
--
Best Regards
Shawn Lin
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