[PATCH v2 1/2] ov772x: bit mask operation fix on ov772x_mask_set.

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Signed-off-by: Kuninori Morimoto <morimoto.kuninori@xxxxxxxxxxx>
---
v1 -> v2
remove superfluous parenthesis.

 drivers/media/video/ov772x.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c
index 80218d3..7cf4fbe 100644
--- a/drivers/media/video/ov772x.c
+++ b/drivers/media/video/ov772x.c
@@ -565,8 +565,11 @@ static int ov772x_mask_set(struct i2c_client *client,
 					  u8  set)
 {
 	s32 val = i2c_smbus_read_byte_data(client, command);
+	if (val < 0)
+		return val;
+
 	val &= ~mask;
-	val |=  set;
+	val |= set & mask;
 
 	return i2c_smbus_write_byte_data(client, command, val);
 }
-- 
1.5.6.3

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