i2c: free idr when sanity checks in i2c_register_adapter() fail

On error, we should give idr back to the pool in any case.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
1 file changed