tree f03226e2833d99b68ed2ad20fc75a3447dcae445
parent 19d9d54b6b92b04eb8edccc1a3b86270caa84b89
author Rob Herring <robherring2@gmail.com> 1316017897 -0500
committer Trilok Soni <tsoni@codeaurora.org> 1324894677 +0530

irq: Fix check for already initialized irq_domain in irq_domain_add

The sanity check in irq_domain_add() tests desc->irq_data != NULL or
irq_data->domain != NULL. This prevents adding an irq_domain to a irq
descriptor when irq_data exists, which true when the irq descriptor
exists.

This went unnoticed so far as the simple domain code did not enter
this code path because domain->nr_irqs is always 0 for the simple domains.

Split the check for irq_data == NULL out and have a separate warning
for it.

[ tglx: Made the check for irq_data == NULL separate ]

Change-Id: I4d22d3a638b4fcd908a491ec0cb3273db6935dc2
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: marc.zyngier@arm.com
Cc: thomas.abraham@linaro.org
Cc: jamie@jamieiles.com
Cc: b-cousson@ti.com
Cc: shawn.guo@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree-discuss@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1316017900-19918-3-git-send-email-robherring2@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>