From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Thu, 31 May 2012 23:26:18 +0000 (-0700)
Subject: proc: don't do dummy rcu_read_lock/rcu_read_unlock on error path
X-Git-Tag: v3.5-rc1~21^2~44
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f05ed3f1abefd37c08fbf08c766d2abd40607777;p=pandora-kernel.git

proc: don't do dummy rcu_read_lock/rcu_read_unlock on error path

rcu_read_lock()/rcu_read_unlock() is nop for TINY_RCU, but is not a nop
for, say, PREEMPT_RCU.

proc_fill_cache() is called without RCU lock, there is no need to
lock/unlock on error path, simply jump out of the loop.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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