V4L/DVB (5304): Improve chip matching in v4l2_register

The chip matching in struct v4l2_register for VIDIOC_DBG_G/S_REGISTER 
was rather primitive. It could not be extended to other busses besides 
i2c and it lacked a way to.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index bd9c4f3ad02e..654863db1591 100644
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -619,7 +619,7 @@ static int saa7127_command(struct i2c_client *client,
         {
                 struct v4l2_register *reg = arg;
 
-                if (reg->i2c_id != I2C_DRIVERID_SAA7127)
+                if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
                         return -EINVAL;
                 if (!capable(CAP_SYS_ADMIN))
                         return -EPERM;