From: Magnus Damm <damm@opensource.se>
Date: Tue, 9 Feb 2010 07:17:20 +0000 (+0000)
Subject: sh: fix INTC to use set_irq_chained_handler() for redirects
X-Git-Tag: v2.6.34-rc1~285^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e6f077592d1de2f6a4fc760e7b5d6f20b37d3a27;p=pandora-kernel.git

sh: fix INTC to use set_irq_chained_handler() for redirects

This patch updates the shared INTC code to use
set_irq_chained_handler() for intc_redirect_irq().

With this in place request_irq() on a merged irq
which has been redirected will now return -EINVAL
instead of 0 together with a crash. This thanks to
the protection of the IRQ_NOREQUEST flag set for
chained interrupt handlers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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