This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)

The rcu_assign_pointer() ensures that the initialization of a structure       
is carried out before storing a pointer to that structure. 
And in the case of the NULL pointer, there is no structure to initialize. 
So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, 
NULL)

Signed-off-by: Monam Agarwal <monamagarwal...@gmail.com>
---
 drivers/input/evdev.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index a06e125..fffa107 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -291,7 +291,7 @@ static int evdev_ungrab(struct evdev *evdev, struct 
evdev_client *client)
        if (grab != client)
                return  -EINVAL;
 
-       rcu_assign_pointer(evdev->grab, NULL);
+       RCU_INIT_POINTER(evdev->grab, NULL);
        synchronize_rcu();
        input_release_device(&evdev->handle);
 
-- 
1.7.9.5

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