drm/edid: Use kmemdup instead of kmalloc + memcpy

This issue was reported by coccicheck using the semantic patch
at scripts/coccinelle/api/memdup.cocci

Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 7a4fd2ed1280..d74239fec291 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3228,10 +3228,9 @@ int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
 
                         /* Speaker Allocation Data Block */
                         if (dbl == 3) {
-                                *sadb = kmalloc(dbl, GFP_KERNEL);
+                                *sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
                                 if (!*sadb)
                                         return -ENOMEM;
-                                memcpy(*sadb, &db[1], dbl);
                                 count = dbl;
                                 break;
                         }