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>

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 7a4fd2e..d74239f 100644 (file)
--- 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;
                        }