drivers: uio: Fix UIO device registration failure
authorDamian Hobson-Garcia <dhobsong@igel.co.jp>
Tue, 26 Mar 2013 01:31:22 +0000 (10:31 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Mar 2013 16:08:22 +0000 (09:08 -0700)
commit5ed0505c713805f89473cdc0bbfb5110dfd840cb
tree05211aaf1a028936a314a3dcf3584f8cd6c98946
parent7f4f2302a11173d0ef84bbab4b887b9b50c31dc6
drivers: uio: Fix UIO device registration failure

Until recently uio_get_minor() returned 0 for success and
a negative value on failure.  This became non-negative for suceess and
negative for failure.  Restore the original return value spec so that we can
successfully initialize UIO devices with a non-zero minor device
number.

Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/uio/uio.c