V4L/DVB (10668): ov772x: bit mask operation fix on ov772x_mask_set.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c
index 702e61a..6b18da7 100644
--- a/drivers/media/video/ov772x.c
+++ b/drivers/media/video/ov772x.c
@@ -565,8 +565,11 @@
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);
}