Input: gpio-keys - report error when disabling unsupported key
authorPeng Fan <van.freenix@gmail.com>
Mon, 24 Aug 2015 17:42:25 +0000 (10:42 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Mon, 24 Aug 2015 17:55:48 +0000 (10:55 -0700)
commit4ea14a53d8f881034fa9e186653821c4e3d9a8fb
treedf31921a1b3aecb872c39f15d4156efd821b34fb
parentff89de6ba1d41ad4dea2c59531c5b4038ae43e8c
Input: gpio-keys - report error when disabling unsupported key

When trying to disable a key that is not supported by the device we should
report error, not do nothing and report success:

root@yocto:/sys/devices/soc0/gpio-keys# cat keys
114-116
root@yocto:/sys/devices/soc0/gpio-keys# echo 77 > keys
root@yocto:/sys/devices/soc0/gpio-keys#

We want 'echo 77 > keys' to report an error, but silence to give us an
illusion that all is 'ok'.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
drivers/input/keyboard/gpio_keys.c