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authorViresh Kumar <viresh.kumar@linaro.org>2013-06-19 09:48:20 +0400
committerViresh Kumar <viresh.kumar@linaro.org>2013-06-24 16:49:01 +0400
commitf56cc99e3f189ce214408e9c0fdda9e664d83dc1 (patch)
tree6afc2ec3bb966a2a9d5888382229c4f2d1117a82 /drivers/cpufreq/tegra-cpufreq.c
parent6cdc9ef32c62d3863c922300b00ef29718f06593 (diff)
downloadlinux-f56cc99e3f189ce214408e9c0fdda9e664d83dc1.tar.xz
cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier in error cases
PRECHANGE and POSTCHANGE notifiers must be called in groups, i.e either both should be called or both shouldn't be. In case we have started PRECHANGE notifier and found an error, we must call POSTCHANGE notifier with freqs.new = freqs.old to guarantee that sequence of calling notifiers is complete. This patch fixes it. Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq/tegra-cpufreq.c')
-rw-r--r--drivers/cpufreq/tegra-cpufreq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index c74c0e130ef4..e74d7774cf1e 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -138,12 +138,12 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
if (ret) {
pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n",
freqs.new);
- return ret;
+ freqs.new = freqs.old;
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- return 0;
+ return ret;
}
static unsigned long tegra_cpu_highest_speed(void)