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-rw-r--r--drivers/devfreq/devfreq.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index ff81b7cdab71..dce45f7a497d 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -902,7 +902,9 @@ int devfreq_suspend_device(struct devfreq *devfreq)
}
if (devfreq->suspend_freq) {
+ mutex_lock(&devfreq->lock);
ret = devfreq_set_target(devfreq, devfreq->suspend_freq, 0);
+ mutex_unlock(&devfreq->lock);
if (ret)
return ret;
}
@@ -930,7 +932,9 @@ int devfreq_resume_device(struct devfreq *devfreq)
return 0;
if (devfreq->resume_freq) {
+ mutex_lock(&devfreq->lock);
ret = devfreq_set_target(devfreq, devfreq->resume_freq, 0);
+ mutex_unlock(&devfreq->lock);
if (ret)
return ret;
}