From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Sat, 3 Aug 2013 23:19:41 +0000 (+0200)
Subject: cpufreq: Avoid double kobject_put() for the same kobject in error code path
X-Git-Tag: v3.12-rc1~178^2~4^2~1^2~15^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=10659ab7b50e963429f1a681882404ca37aa584c;p=pandora-kernel.git

cpufreq: Avoid double kobject_put() for the same kobject in error code path

The only case triggering a jump to the err_out_unregister label in
__cpufreq_add_dev() is when cpufreq_add_dev_interface() fails.
However, if cpufreq_add_dev_interface() fails, it calls kobject_put()
for the policy kobject in its error code path and since that causes
the kobject's refcount to become 0, the additional kobject_put() for
the same kobject under err_out_unregister and the
wait_for_completion() following it are pointless, so drop them.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
---

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