gpio: Fix potential NULL handler data in chained irqchip handler

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commit 324b039878 upstream.

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().

Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jarkko Nikula 2014-09-16 16:23:15 +03:00 • committed by Greg Kroah-Hartman

parent 47155f7c64

commit 02a4c49653

1 changed files with 1 additions and 1 deletions

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drivers/gpio/gpiolib.c

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