mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 08:08:54 +00:00
Code Issues Releases Wiki Activity

media: saa7146: drop double zeroing

Browse source 
sg_init_table zeroes its first argument, so the allocation of that argument
doesn't have to.

the semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,n,flags;
@@

x =
- kcalloc
+ kmalloc_array
  (n,sizeof(struct scatterlist),flags)
...
sg_init_table(x,n)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Julia Lawall 2020-09-20 13:26:24 +02:00 committed by Mauro Carvalho Chehab
parent b28e32798c
commit 8cc72b9c70
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/media/common/saa7146/saa7146_core.c
View file

@ -140,7 +140,7 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
struct page *pg;
int i;
sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
sglist = kmalloc_array(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
if (NULL == sglist)
return NULL;
sg_init_table(sglist, nr_pages);