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drivers/staging: Use RCU_INIT_POINTER(x, NULL) in fwserial/fwserial.c

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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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Monam Agarwal 2014-03-24 00:08:22 +05:30 committed by Greg Kroah-Hartman
parent cb79074738
commit e8429b0913
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/fwserial/fwserial.c
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@ -1807,7 +1807,7 @@ 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)
@ -2240,7 +2240,7 @@ 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 */