From: Bojan Prtvar <prtvar.b@gmail.com>
Date: Wed, 3 Aug 2011 19:51:19 +0000 (+0000)
Subject: drm/radeon: fix potential NULL dereference in drivers/gpu/drm/radeon/atom.c
X-Git-Tag: v3.1-rc1~22^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=816985d4f96cda5159b6b65f3442964725030ae9;p=platform%2Fkernel%2Flinux-exynos.git

drm/radeon: fix potential NULL dereference in drivers/gpu/drm/radeon/atom.c

kzalloc() can return NULL, so I added check for it

Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index ebdb0fd..e88c644 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -1245,6 +1245,9 @@ struct atom_context *atom_parse(struct card_info *card, void *bios)
 	char name[512];
 	int i;
 
+	if (!ctx)
+		return NULL;
+
 	ctx->card = card;
 	ctx->bios = bios;