From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Tue, 12 Jul 2011 15:39:03 +0000 (-0300)
Subject: [media] V4L: mt9m111: fix missing return value check mt9m111_reg_clear
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9c56cbf9aadff79c25ccd424ae422971efd5c1a4;p=deliverable%2Flinux.git

[media] V4L: mt9m111: fix missing return value check mt9m111_reg_clear

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index cbccc869c7e1..8d8420acc9cf 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -250,7 +250,9 @@ static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
 	int ret;
 
 	ret = mt9m111_reg_read(client, reg);
-	return mt9m111_reg_write(client, reg, ret & ~data);
+	if (ret >= 0)
+		ret = mt9m111_reg_write(client, reg, ret & ~data);
+	return ret;
 }
 
 static int mt9m111_set_context(struct mt9m111 *mt9m111,