tree 4e6d55c8229c743f41efbc8c1e92906e3c732bdb
parent 72f908c88cef42b4ad486c39967fa4d7fdffce18
author Jarkko Nikula <jarkko.nikula@linux.intel.com> 1410873795 +0300
committer Linus Walleij <linus.walleij@linaro.org> 1411544840 +0200

gpio: Fix potential NULL handler data in chained irqchip handler

There is possibility with misconfigured pins that interrupt occurs instantly
after setting irq_set_chained_handler() in gpiochip_set_chained_irqchip().
Now if handler gets called before irq_set_handler_data() the handler gets
NULL handler data.

Fix this by moving irq_set_handler_data() call before
irq_set_chained_handler() in gpiochip_set_chained_irqchip().

Cc: Stable <stable@vger.kernel.org> # 3.15+
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>