[media] tea6415c: return -EIO if i2c_check_functionality fails

If the adapter does not support I2C_FUNC_SMBUS_WRITE_BYTE,
return -EIO instead of 0.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/video/tea6415c.c b/drivers/media/video/tea6415c.c
index 3e99cea8e4dc..19621ed523ec 100644
--- a/drivers/media/video/tea6415c.c
+++ b/drivers/media/video/tea6415c.c
@@ -148,7 +148,7 @@ static int tea6415c_probe(struct i2c_client *client,
 
         /* let's see whether this adapter can support what we need */
         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WRITE_BYTE))
-                return 0;
+                return -EIO;
 
         v4l_info(client, "chip found @ 0x%x (%s)\n",
                         client->addr << 1, client->adapter->name);