From: Aaron Plattner <aplattner@nvidia.com>
Date: Wed, 18 Jun 2014 18:27:32 +0000 (-0700)
Subject: cpufreq: unlock when failing cpufreq_update_policy()
X-Git-Tag: omap-for-v3.17/soc-cleanup~71^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fefa8ff810c5ab4c4206aed9d159c4d6fe8d4f1c;p=pandora-kernel.git

cpufreq: unlock when failing cpufreq_update_policy()

Commit bd0fa9bb455d introduced a failure path to cpufreq_update_policy() if
cpufreq_driver->get(cpu) returns NULL.  However, it jumps to the 'no_policy'
label, which exits without unlocking any of the locks the function acquired
earlier.  This causes later calls into cpufreq to hang.

Fix this by creating a new 'unlock' label and jumping to that instead.

Fixes: bd0fa9bb455d ("cpufreq: Return error if ->get() failed in cpufreq_update_policy()")
Link: https://devtalk.nvidia.com/default/topic/751903/kernel-3-15-and-nv-drivers-337-340-failed-to-initialize-the-nvidia-kernel-module-gtx-550-ti-/
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Cc: 3.15+ <stable@vger.kernel.org> # 3.15+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

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