From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 25 Jan 2011 15:52:33 +0000 (+0000)
Subject: ALSA: AACI: fix multiple IRQ claiming
X-Git-Tag: v2.6.39-rc1~435^3~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b60fb519d7977e606621af85585c3677fc290ef8;p=pandora-kernel.git

ALSA: AACI: fix multiple IRQ claiming

Claiming the IRQ each time a playback or capture interface is opened
is wasteful; the second copy of the registered handler is identical to
the first and just wastes resources.  Track the number of opens and
only register the handler when necessary.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

Reading git-diff-tree failed