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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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2
mm/hugetlb.c
View File

@@ -1020,7 +1020,7 @@ static long region_chg(struct list_head *head, long f, long t)
* size such that we can guarentee to record the reservation. */
if (&rg->link == head || t < rg->from) {
nrg = kmalloc(sizeof(*nrg), GFP_KERNEL);
if (nrg == 0)
if (!nrg)
return -ENOMEM;
nrg->from = f;
nrg->to = f;

4
mm/mremap.c
View File

@@ -291,7 +291,7 @@ unsigned long do_mremap(unsigned long addr,
if ((addr <= new_addr) && (addr+old_len) > new_addr)
goto out;
ret = security_file_mmap(0, 0, 0, 0, new_addr, 1);
ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
if (ret)
goto out;
@@ -399,7 +399,7 @@ unsigned long do_mremap(unsigned long addr,
goto out;
}
ret = security_file_mmap(0, 0, 0, 0, new_addr, 1);
ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1);
if (ret)
goto out;
}

2
mm/vmscan.c
View File

@@ -1282,7 +1282,7 @@ out:
*/
if (priority < 0)
priority = 0;
for (i = 0; zones[i] != 0; i++) {
for (i = 0; zones[i] != NULL; i++) {
struct zone *zone = zones[i];
if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))