linux-kernel - [PATCH] Fix potential NULL dereference in drivers/gpu/drm/radeon/atom.c

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Date:	Wed,  3 Aug 2011 21:51:19 +0200
From:	Bojan Prtvar <prtvar.b@...il.com>
To:	airlied@...ux.ie
Cc:	alexdeucher@...il.com, airlied@...hat.com,
	akpm@...ux-foundation.org, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Bojan Prtvar <prtvar.b@...il.com>
Subject: [PATCH] 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@...il.com>
---
 drivers/gpu/drm/radeon/atom.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

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;
 
-- 
1.7.1

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