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sparse pointer use of zero as null

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Get rid of sparse related warnings from places that use integer as NULL
pointer.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Stephen Hemminger
2007-10-18 03:07:05 -07:00
committed by Linus Torvalds
parent 0e9663ee45
commit c80544dc0b
20 changed files with 34 additions and 33 deletions
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4
kernel/futex.c
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@@ -293,7 +293,7 @@ EXPORT_SYMBOL_GPL(get_futex_key_refs);
*/
void drop_futex_key_refs(union futex_key *key)
{
if (key->both.ptr == 0)
if (!key->both.ptr)
return;
switch (key->both.offset & (FUT_OFF_INODE|FUT_OFF_MMSHARED)) {
case FUT_OFF_INODE:
@@ -1046,7 +1046,7 @@ static int unqueue_me(struct futex_q *q)
retry:
lock_ptr = q->lock_ptr;
barrier();
if (lock_ptr != 0) {
if (lock_ptr != NULL) {
spin_lock(lock_ptr);
/*
* q->lock_ptr can change between reading it and