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Commit 8b81edd8 authored by Marc Zyngier's avatar Marc Zyngier Committed by Linus Walleij
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gpio: pca953x: Survive spurious interrupts



The pca953x driver never checks the result of irq_find_mapping(),
which returns 0 when no mapping is found. When a spurious interrupt
is delivered (which can happen under obscure circumstances), the
kernel explodes as it still tries to handle the error code as
a real interrupt.

Handle this particular case and warn on spurious interrupts.

Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201005140217.1390851-1-maz@kernel.org


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 47e538d8
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