Backport changeset from kernel mainstream

From: Mauro Carvalho Chehab <mchehab@infradead.org>


kernel-sync:

The original patch from Yoann Padioleau <padator@wanadoo.fr>:

Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when !=
\(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...)
S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/linux/drivers/media/dvb/cinergyT2/cinergyT2.c b/linux/drivers/media/dvb/cinergyT2/cinergyT2.c
index cca6b7985..0cde1e2d3 100644
--- a/linux/drivers/media/dvb/cinergyT2/cinergyT2.c
+++ b/linux/drivers/media/dvb/cinergyT2/cinergyT2.c
@@ -967,12 +967,11 @@ static int cinergyt2_probe (struct usb_interface *intf,
 	struct cinergyt2 *cinergyt2;
 	int err;
 
-	if (!(cinergyt2 = kmalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
+	if (!(cinergyt2 = kzalloc (sizeof(struct cinergyt2), GFP_KERNEL))) {
 		dprintk(1, "out of memory?!?\n");
 		return -ENOMEM;
 	}
 
-	memset (cinergyt2, 0, sizeof (struct cinergyt2));
 	usb_set_intfdata (intf, (void *) cinergyt2);
 
 	mutex_init(&cinergyt2->sem);