[media] pvrusb2-io: Use kmalloc_array() in pvr2_stream_buffer_count()

A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-io.c b/drivers/media/usb/pvrusb2/pvrusb2-io.c
index 2832ddffcc71f028ce4367f583120ad59914e82f..aa5c32c678d7f578e1c9390f2877fb7e68fc644e 100644 (file)
--- a/drivers/media/usb/pvrusb2/pvrusb2-io.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-io.c
@@ -308,7 +308,8 @@ static int pvr2_stream_buffer_count(struct pvr2_stream *sp,unsigned int cnt)
        if (cnt > sp->buffer_total_count) {
                if (scnt > sp->buffer_slot_count) {
                        struct pvr2_buffer **nb;
-                       nb = kmalloc(scnt * sizeof(*nb),GFP_KERNEL);
+
+                       nb = kmalloc_array(scnt, sizeof(*nb), GFP_KERNEL);
                        if (!nb) return -ENOMEM;
                        if (sp->buffer_slot_count) {
                                memcpy(nb,sp->buffers,