V4L/DVB (10668): ov772x: bit mask operation fix on ov772x_mask_set.
authorKuninori Morimoto <morimoto.kuninori@renesas.com>
Mon, 23 Feb 2009 15:12:58 +0000 (12:12 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Mon, 30 Mar 2009 15:42:52 +0000 (12:42 -0300)
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>
drivers/media/video/ov772x.c

index 702e61a9c02b71cdb13c04414ba4a3991d01c68b..6b18da7c3c0ac02272a8f38a99171436edbf641a 100644 (file)
@@ -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);
 }