pwm: fan: fix deadlock due to incorrect locking

Bug 3227296
Bug 200695596
Bug 200728417

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Change-Id: Ib64915556d285bd798e95da81a261eb2c16b4dab
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2503884
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Bibek Basu <bbasu@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/therm_est.h b/include/linux/therm_est.h
index 85284a5fe..5c5d916ce 100644
--- a/include/linux/therm_est.h
+++ b/include/linux/therm_est.h
@@ -1,7 +1,7 @@
 /*
  * include/linux/therm_est.h
  *
- * Copyright (c) 2010-2020, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2010-2021, NVIDIA CORPORATION.  All rights reserved.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -187,7 +187,7 @@ struct fan_dev_data {
         struct delayed_work fan_ramp_pwm_work;
         struct delayed_work fan_ramp_rpm_work;
         struct device *pwm_tach_dev;
-        struct mutex pwm_set;
+        struct completion pwm_set;
         bool fan_rpm_in_limits;
         int rpm_valid_retry_delay;
         int rpm_invalid_retry_delay;