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/staging/fwserial/fwserial.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/fwserial/fwserial.c 
b/drivers/staging/fwserial/fwserial.c
index 8af136e..4e42bde 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -1809,7 +1809,7 @@ static void fwserial_release_port(struct fwtty_port 
*port, bool reset)
        port->max_payload = link_speed_to_max_payload(SCODE_100);
        dma_fifo_change_tx_limit(&port->tx_fifo, port->max_payload);
 
-       rcu_assign_pointer(port->peer, NULL);
+       RCU_INIT_POINTER(port->peer, NULL);
        spin_unlock_bh(&port->lock);
 
        if (port->port.console && port->fwcon_ops->notify != NULL)
@@ -2235,7 +2235,7 @@ static int fwserial_create(struct fw_unit *unit)
                port->max_payload = link_speed_to_max_payload(SCODE_100);
                dma_fifo_init(&port->tx_fifo);
 
-               rcu_assign_pointer(port->peer, NULL);
+               RCU_INIT_POINTER(port->peer, NULL);
                serial->ports[i] = port;
 
                /* get unique bus addr region for port's status & recv fifo */
-- 
1.7.9.5

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