linux-kernel - [PATCH] video:uvesafb: check the return value of kzalloc

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Message-ID: <20120813100232.GA16363@udknight>
Date:	Mon, 13 Aug 2012 18:02:32 +0800
From:	Wang YanQing <udknight@...il.com>
To:	FlorianSchandinat@....de
Cc:	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	spock@...too.org
Subject: [PATCH] video:uvesafb: check the return value of kzalloc


Michal maybe forgot it merely, we should add code
to check the return value of kzalloc to make the
code more robust.

Signed-off-by: Wang YanQing <udknight@...il.com>
---
 drivers/video/uvesafb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index b0e2a42..2f8f82d 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -659,6 +659,8 @@ static int __devinit uvesafb_vbe_getedid(struct uvesafb_ktask *task,
 	task->t.flags = TF_BUF_RET | TF_BUF_ESDI;
 	task->t.buf_len = EDID_LENGTH;
 	task->buf = kzalloc(EDID_LENGTH, GFP_KERNEL);
+	if (!task->buf)
+		return -ENOMEM;
 
 	err = uvesafb_exec(task);
 
-- 
1.7.11.1.116.g8228a23
--
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