PM / QoS: Use NULL pointer instead of plain integer in qos.c

Fix the following sparse warning:
drivers/base/power/qos.c:465:29: warning: Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index fd849a2c4fa8fdaa4ae3ac10a8ce853b9e14bec7..74a67e0019a2d246820ccb2858399bca193ff789 100644 (file)
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -462,7 +462,7 @@ EXPORT_SYMBOL_GPL(dev_pm_qos_add_ancestor_request);
 static void __dev_pm_qos_drop_user_request(struct device *dev)
 {
        dev_pm_qos_remove_request(dev->power.pq_req);
-       dev->power.pq_req = 0;
+       dev->power.pq_req = NULL;
 }
 
 /**