From: Michael Buesch <mb@bu3sch.de>
Date: Sat, 26 Feb 2011 23:34:33 +0000 (+0000)
Subject: cbus-retu: Acquire mutex on write operation
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ac8b596206294065074492e5460e20c1b8a1e98;p=pandora-kernel.git

cbus-retu: Acquire mutex on write operation

The mutex has to be acquired on register write to avoid interference
with a simultaneous retu_set_clear_reg_bits operation.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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