From: Fabian Frederick <fabf@skynet.be>
Date: Fri, 20 Feb 2015 18:12:57 +0000 (+0100)
Subject: serial: core: replace current->state by __set_current_state()
X-Git-Tag: omap-for-v4.1/fixes-rc1~74^2~77^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=97f9f707d26dfe34368a5b88f1996f2eaf973b42;p=pandora-kernel.git

serial: core: replace current->state by __set_current_state()

Use helper functions to access current->state.
Direct assignments are prone to races and therefore buggy.

Thanks to Peter Zijlstra for the exact definition of the problem.

Suggested-By: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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