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.law...@inria.fr> --- drivers/media/common/saa7146/saa7146_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -u -p a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c --- a/drivers/media/common/saa7146/saa7146_core.c +++ b/drivers/media/common/saa7146/saa7146_core.c @@ -140,7 +140,7 @@ static struct scatterlist* vmalloc_to_sg 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);
