ALSA: ctxf: Use kcalloc instead of kzalloc to allocate array

The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.

The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ctxfi/ctsrc.c

@@ -437,7 +437,7 @@ get_src_rsc(struct src_mgr *mgr, const struct src_desc *desc, struct src **rsrc)
 
 	/* Allocate mem for master src resource */
 	if (MEMRD == desc->mode)
-		src = kzalloc(sizeof(*src)*desc->multi, GFP_KERNEL);
+		src = kcalloc(desc->multi, sizeof(*src), GFP_KERNEL);
 	else
 		src = kzalloc(sizeof(*src), GFP_KERNEL);