diff options
Diffstat (limited to 'drivers/net/wan/pc300_tty.c')
| -rw-r--r-- | drivers/net/wan/pc300_tty.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/wan/pc300_tty.c b/drivers/net/wan/pc300_tty.c index e24a7b095dd..63abfd72542 100644 --- a/drivers/net/wan/pc300_tty.c +++ b/drivers/net/wan/pc300_tty.c @@ -313,7 +313,7 @@ static int cpc_tty_open(struct tty_struct *tty, struct file *flip) if (cpc_tty->num_open == 0) { /* first open of this tty */ if (!cpc_tty_area[port].buf_tx){ cpc_tty_area[port].buf_tx = kmalloc(CPC_TTY_MAX_MTU,GFP_KERNEL); - if (cpc_tty_area[port].buf_tx == 0){ + if (!cpc_tty_area[port].buf_tx) { CPC_TTY_DBG("%s: error in memory allocation\n",cpc_tty->name); return -ENOMEM; } @@ -678,7 +678,7 @@ static void cpc_tty_rx_work(struct work_struct *work) for (j=0; j < CPC_TTY_NPORTS; j++) { cpc_tty = &cpc_tty_area[port]; - if ((buf=cpc_tty->buf_rx.first) != 0) { + if ((buf=cpc_tty->buf_rx.first) != NULL) { if (cpc_tty->tty) { ld = tty_ldisc_ref(cpc_tty->tty); if (ld) { @@ -784,7 +784,7 @@ void cpc_tty_receive(pc300dev_t *pc300dev) } new = kmalloc(rx_len + sizeof(st_cpc_rx_buf), GFP_ATOMIC); - if (new == 0) { + if (!new) { cpc_tty_rx_disc_frame(pc300chan); continue; } @@ -863,7 +863,7 @@ void cpc_tty_receive(pc300dev_t *pc300dev) } new->size = rx_len; new->next = NULL; - if (cpc_tty->buf_rx.first == 0) { + if (cpc_tty->buf_rx.first == NULL) { cpc_tty->buf_rx.first = new; cpc_tty->buf_rx.last = new; } else { @@ -891,7 +891,7 @@ static void cpc_tty_tx_work(struct work_struct *work) CPC_TTY_DBG("%s: cpc_tty_tx_work init\n",cpc_tty->name); - if ((tty = cpc_tty->tty) == 0) { + if ((tty = cpc_tty->tty) == NULL) { CPC_TTY_DBG("%s: the interface is not opened\n",cpc_tty->name); return; } @@ -1027,7 +1027,7 @@ void cpc_tty_unregister_service(pc300dev_t *pc300dev) ulong flags; int res; - if ((cpc_tty= (st_cpc_tty_area *) pc300dev->cpc_tty) == 0) { + if ((cpc_tty= (st_cpc_tty_area *) pc300dev->cpc_tty) == NULL) { CPC_TTY_DBG("%s: interface is not TTY\n", pc300dev->dev->name); return; } |