V4L/DVB (6465): Use correct error codes when chip is not recognized

If the chip isn't recognized, then the correct errors should be returned.
The v4l2_i2c_attach() utility function will return 0 for all errors
except -ENOMEM to provide proper compatibility support for the old I2C
probing function.

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

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index 958ecc7168c3..0262acde0888 100644
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -671,7 +671,7 @@ static int saa7127_probe(struct i2c_client *client)
 
         /* Check if the adapter supports the needed features */
         if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-                return 0;
+                return -EIO;
 
         snprintf(client->name, sizeof(client->name) - 1, "saa7127");
 
@@ -685,12 +685,12 @@ static int saa7127_probe(struct i2c_client *client)
         if ((saa7127_read(client, 0) & 0xe4) != 0 ||
                         (saa7127_read(client, 0x29) & 0x3f) != 0x1d) {
                 v4l_dbg(1, debug, client, "saa7127 not found\n");
-                return 0;
+                return -ENODEV;
         }
         state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL);
 
         if (state == NULL) {
-                return (-ENOMEM);
+                return -ENOMEM;
         }
 
         i2c_set_clientdata(client, state);