Merge tag 'gpio-v3.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...

Merge tag 'gpio-v3.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull gpio fixes from Linus Walleij:
 "Two GPIO fixes:

   - GPIO direction flags where handled wrong in the new descriptor-
     based API, so direction changes did not always "take".

   - Fix a handler installation race in the generic GPIO irqchip code"

* tag 'gpio-v3.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: Fix potential NULL handler data in chained irqchip handler
  gpio: Fix gpio direction flags not getting set