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From: Marcin Slusarz <marcin.slusarz@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: "Daniel Marjamäki" <danielm77@spray.se>,
	"Mauro Carvalho Chehab" <mchehab@infradead.org>,
	video4linux-list@redhat.com
Subject: [PATCH] V4L/vivi: fix possible memory leak in vivi_fillbuff
Date: Sun, 22 Jun 2008 11:11:40 +0200	[thread overview]
Message-ID: <20080622091136.GB11823@joi> (raw)

Move allocation after first check and fix memory leak.
http://bugzilla.kernel.org/show_bug.cgi?id=10659

Noticed-by: Daniel Marjamäki <danielm77@spray.se>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/vivi.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 845be18..5ff9a58 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -327,13 +327,14 @@ static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf)
 	int hmax  = buf->vb.height;
 	int wmax  = buf->vb.width;
 	struct timeval ts;
-	char *tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC);
+	char *tmpbuf;
 	void *vbuf = videobuf_to_vmalloc(&buf->vb);
 
-	if (!tmpbuf)
+	if (!vbuf)
 		return;
 
-	if (!vbuf)
+	tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC);
+	if (!tmpbuf)
 		return;
 
 	for (h = 0; h < hmax; h++) {
-- 
1.5.4.5


                 reply	other threads:[~2008-06-22  9:12 UTC|newest]

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