misc: mic: drop double zeroing

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>
Link: https://lore.kernel.org/r/1600601186-7420-14-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/mic/scif/scif_nodeqp.c b/drivers/misc/mic/scif/scif_nodeqp.c
index e0748be..384ce08 100644 (file)
--- a/drivers/misc/mic/scif/scif_nodeqp.c
+++ b/drivers/misc/mic/scif/scif_nodeqp.c
@@ -363,7 +363,7 @@ scif_p2p_setsg(phys_addr_t pa, int page_size, int page_cnt)
        struct page *page;
        int i;
 
-       sg = kcalloc(page_cnt, sizeof(struct scatterlist), GFP_KERNEL);
+       sg = kmalloc_array(page_cnt, sizeof(struct scatterlist), GFP_KERNEL);
        if (!sg)
                return NULL;
        sg_init_table(sg, page_cnt);