GPU-DRM: Replace a kzalloc() call by kcalloc() in drm_legacy_addbufs_sg()

The script "checkpatch.pl" can point information out like the following.

WARNING: Prefer kcalloc over kzalloc with multiply

Thus fix the affected source code place.

Signed-off-by: Markus Elfring <[e-mail]>
Signed-off-by: Daniel Vetter <[e-mail]>
Link: http://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/drm_bufs.c

···
 		return -EINVAL;
 	}
 
-	entry->buflist = kzalloc(count * sizeof(*entry->buflist),
-				GFP_KERNEL);
+	entry->buflist = kcalloc(count, sizeof(*entry->buflist), GFP_KERNEL);
 	if (!entry->buflist) {
 		mutex_unlock(&dev->struct_mutex);
 		atomic_dec(&dev->buf_alloc);