From: Ben Dooks <ben-linux@fluff.org>
Date: Fri, 8 Aug 2008 20:22:35 +0000 (+0100)
Subject: [ARM] CATS: Do not try and map bad PCI IRQ numbers
X-Git-Tag: v2.6.27-rc4~54^2~17^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e38d523fd0932a5d4ef2865360d8828efcf05392;p=pandora-kernel.git

[ARM] CATS: Do not try and map bad PCI IRQ numbers

The cats_map_irq() function in the Simtec CATS support
code is mapping IRQ 255 (invalid IRQ) into what is a
supposedly valid interrupt numner which can cause problems
with other devices then seeing an interrupt they cannot
claim.

If the IRQ number if >= 255, then return -1 as this is not
something we can map.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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