tree eb9b378efe9e7f791912061769cb128bd2dcae7d
parent 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f
author Peng Fan <van.freenix@gmail.com> 1440335512 +0800
committer Linus Walleij <linus.walleij@linaro.org> 1442214722 +0200

gpio: mxc: need to check return value of irq_alloc_generic_chip

Need to check return value of irq_alloc_generic_chip, because
it may return NULL.
1. Change mxc_gpio_init_gc return type from void to int.
2. Add a new lable out_irqdomain_remove to remove the irq domain
   when mxc_gpio_init_gc fail.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
[Manually rebased]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>