crypto: nx - Use RCU_INIT_POINTER(x, NULL)

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 <monamagarwal123@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/nx/nx-842.c b/drivers/crypto/nx/nx-842.c
index 1e5481d88a262c655aec0d381574341531f5f4ae..c4fcbf47475f59113df1a9c6f6366416e40dedeb 100644 (file)
--- a/drivers/crypto/nx/nx-842.c
+++ b/drivers/crypto/nx/nx-842.c
@@ -1234,7 +1234,7 @@ static int __exit nx842_remove(struct vio_dev *viodev)
        old_devdata = rcu_dereference_check(devdata,
                        lockdep_is_held(&devdata_mutex));
        of_reconfig_notifier_unregister(&nx842_of_nb);
-       rcu_assign_pointer(devdata, NULL);
+       RCU_INIT_POINTER(devdata, NULL);
        spin_unlock_irqrestore(&devdata_mutex, flags);
        synchronize_rcu();
        dev_set_drvdata(&viodev->dev, NULL);
@@ -1285,7 +1285,7 @@ static void __exit nx842_exit(void)
        spin_lock_irqsave(&devdata_mutex, flags);
        old_devdata = rcu_dereference_check(devdata,
                        lockdep_is_held(&devdata_mutex));
-       rcu_assign_pointer(devdata, NULL);
+       RCU_INIT_POINTER(devdata, NULL);
        spin_unlock_irqrestore(&devdata_mutex, flags);
        synchronize_rcu();
        if (old_devdata)