From cd228d5458186f66bc36c4884f4f26ed955c5945 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 12 Nov 2007 18:07:31 -0800 Subject: [PPP]: Remove ptr comparisons to 0 fix sparse warnings "Using plain integer as NULL pointer" Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- drivers/net/ppp_async.c | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) (limited to 'drivers/net/ppp_async.c') diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c index 8d278c87ba4..f023d5b67e6 100644 --- a/drivers/net/ppp_async.c +++ b/drivers/net/ppp_async.c @@ -160,7 +160,7 @@ ppp_asynctty_open(struct tty_struct *tty) err = -ENOMEM; ap = kzalloc(sizeof(*ap), GFP_KERNEL); - if (ap == 0) + if (!ap) goto out; /* initialize the asyncppp structure */ @@ -215,7 +215,7 @@ ppp_asynctty_close(struct tty_struct *tty) ap = tty->disc_data; tty->disc_data = NULL; write_unlock_irq(&disc_data_lock); - if (ap == 0) + if (!ap) return; /* @@ -230,10 +230,10 @@ ppp_asynctty_close(struct tty_struct *tty) tasklet_kill(&ap->tsk); ppp_unregister_channel(&ap->chan); - if (ap->rpkt != 0) + if (ap->rpkt) kfree_skb(ap->rpkt); skb_queue_purge(&ap->rqueue); - if (ap->tpkt != 0) + if (ap->tpkt) kfree_skb(ap->tpkt); kfree(ap); } @@ -285,13 +285,13 @@ ppp_asynctty_ioctl(struct tty_struct *tty, struct file *file, int err, val; int __user *p = (int __user *)arg; - if (ap == 0) + if (!ap) return -ENXIO; err = -EFAULT; switch (cmd) { case PPPIOCGCHAN: err = -ENXIO; - if (ap == 0) + if (!ap) break; err = -EFAULT; if (put_user(ppp_channel_index(&ap->chan), p)) @@ -301,7 +301,7 @@ ppp_asynctty_ioctl(struct tty_struct *tty, struct file *file, case PPPIOCGUNIT: err = -ENXIO; - if (ap == 0) + if (!ap) break; err = -EFAULT; if (put_user(ppp_unit_number(&ap->chan), p)) @@ -350,7 +350,7 @@ ppp_asynctty_receive(struct tty_struct *tty, const unsigned char *buf, struct asyncppp *ap = ap_get(tty); unsigned long flags; - if (ap == 0) + if (!ap) return; spin_lock_irqsave(&ap->recv_lock, flags); ppp_async_input(ap, buf, cflags, count); @@ -369,7 +369,7 @@ ppp_asynctty_wakeup(struct tty_struct *tty) struct asyncppp *ap = ap_get(tty); clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); - if (ap == 0) + if (!ap) return; set_bit(XMIT_WAKEUP, &ap->xmit_flags); tasklet_schedule(&ap->tsk); @@ -684,7 +684,7 @@ ppp_async_push(struct asyncppp *ap) tty_stuffed = 1; continue; } - if (ap->optr >= ap->olim && ap->tpkt != 0) { + if (ap->optr >= ap->olim && ap->tpkt) { if (ppp_async_encode(ap)) { /* finished processing ap->tpkt */ clear_bit(XMIT_FULL, &ap->xmit_flags); @@ -704,7 +704,7 @@ ppp_async_push(struct asyncppp *ap) clear_bit(XMIT_BUSY, &ap->xmit_flags); /* any more work to do? if not, exit the loop */ if (!(test_bit(XMIT_WAKEUP, &ap->xmit_flags) - || (!tty_stuffed && ap->tpkt != 0))) + || (!tty_stuffed && ap->tpkt))) break; /* more work to do, see if we can do it now */ if (test_and_set_bit(XMIT_BUSY, &ap->xmit_flags)) @@ -715,7 +715,7 @@ ppp_async_push(struct asyncppp *ap) flush: clear_bit(XMIT_BUSY, &ap->xmit_flags); - if (ap->tpkt != 0) { + if (ap->tpkt) { kfree_skb(ap->tpkt); ap->tpkt = NULL; clear_bit(XMIT_FULL, &ap->xmit_flags); @@ -848,7 +848,7 @@ ppp_async_input(struct asyncppp *ap, const unsigned char *buf, s = 0; for (i = 0; i < count; ++i) { c = buf[i]; - if (flags != 0 && flags[i] != 0) + if (flags && flags[i] != 0) continue; s |= (c & 0x80)? SC_RCV_B7_1: SC_RCV_B7_0; c = ((c >> 4) ^ c) & 0xf; @@ -865,7 +865,7 @@ ppp_async_input(struct asyncppp *ap, const unsigned char *buf, n = scan_ordinary(ap, buf, count); f = 0; - if (flags != 0 && (ap->state & SC_TOSS) == 0) { + if (flags && (ap->state & SC_TOSS) == 0) { /* check the flags to see if any char had an error */ for (j = 0; j < n; ++j) if ((f = flags[j]) != 0) @@ -878,9 +878,9 @@ ppp_async_input(struct asyncppp *ap, const unsigned char *buf, } else if (n > 0 && (ap->state & SC_TOSS) == 0) { /* stuff the chars in the skb */ skb = ap->rpkt; - if (skb == 0) { + if (!skb) { skb = dev_alloc_skb(ap->mru + PPP_HDRLEN + 2); - if (skb == 0) + if (!skb) goto nomem; ap->rpkt = skb; } @@ -927,7 +927,7 @@ ppp_async_input(struct asyncppp *ap, const unsigned char *buf, ++n; buf += n; - if (flags != 0) + if (flags) flags += n; count -= n; } -- cgit v1.2.3