From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Fri, 2 Nov 2012 12:13:56 +0000 (-0300)
Subject: [media] rc: Call rc_register_device before irq setup
X-Git-Tag: v3.9-rc1~93^2~469
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9fa35204dd19eb0e96ee870b7128a8f5da51dbfa;p=pandora-kernel.git

[media] rc: Call rc_register_device before irq setup

This should fix a potential race condition, when the irq handler
triggers while rc_register_device is still setting up the rdev->raw
device.
This crash has not been observed in practice, but there should be a very
small window where it could occur. Since ir_raw_event_store_with_filter
checks if rdev->raw is not NULL before using it, this bug is not
triggered if the request_irq triggers a pending irq directly (since
rdev->raw will still be NULL then).
This commit was tested on nuvoton-cir only.

Cc: Jarod Wilson <jarod@redhat.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: David Härdeman <david@hardeman.nu>
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

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