From: Marcin Slusarz <marcin.slusarz@gmail.com>
Date: Sun, 22 Jun 2008 12:11:40 +0000 (-0300)
Subject: V4L/DVB (8100): V4L/vivi: fix possible memory leak in vivi_fillbuff
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5c554e6b984ce6b36488b93a7ec8e2752233e7cb;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

V4L/DVB (8100): V4L/vivi: fix possible memory leak in vivi_fillbuff

Move allocation after first check and fix memory leak.

Noticed-by: Daniel Marjamäki <danielm77@spray.se>

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 845be1864f68..5ff9a58b6135 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++) {