From: Benoit Taine <benoit.taine@lip6.fr>
Date: Mon, 26 May 2014 15:21:22 +0000 (+0200)
Subject: drm/edid: Use kmemdup instead of kmalloc + memcpy
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=89086bca67f04a538765faf39ea7c1b718beaf34;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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 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;
 			}