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tools/nolibc: avoid using plain integer as NULL pointer

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While an integer zero is a valid NULL pointer as per the C standard,
sparse will complain about it.

Use explicit NULL pointers instead.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202509261452.g5peaXCc-lkp@intel.com/
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Thomas Weißschuh
2025-11-09 20:27:29 +01:00
parent 107eb8336e
commit 2d8482959e
4 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
tools/include/nolibc/getopt.h
View File

@@ -78,7 +78,7 @@ int getopt(int argc, char * const argv[], const char *optstring)
return '?';
}
if (optstring[i] == ':') {
optarg = 0;
optarg = NULL;
if (optstring[i + 1] != ':' || __optpos) {
optarg = argv[optind++];
if (__optpos)

2
tools/include/nolibc/sys.h
View File

@@ -106,7 +106,7 @@ static __attribute__((unused))
void *sbrk(intptr_t inc)
{
/* first call to find current end */
void *ret = sys_brk(0);
void *ret = sys_brk(NULL);
if (ret && sys_brk(ret + inc) == ret + inc)
return ret + inc;

2
tools/include/nolibc/sys/reboot.h
View File

@@ -28,7 +28,7 @@ ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg)
static __attribute__((unused))
int reboot(int cmd)
{
return __sysret(sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0));
return __sysret(sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, NULL));
}
#endif /* _NOLIBC_SYS_REBOOT_H */

6
tools/include/nolibc/unistd.h
View File

@@ -54,7 +54,7 @@ int msleep(unsigned int msecs)
{
struct timeval my_timeval = { msecs / 1000, (msecs % 1000) * 1000 };
if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
if (sys_select(0, NULL, NULL, NULL, &my_timeval) < 0)
return (my_timeval.tv_sec * 1000) +
(my_timeval.tv_usec / 1000) +
!!(my_timeval.tv_usec % 1000);
@@ -67,7 +67,7 @@ unsigned int sleep(unsigned int seconds)
{
struct timeval my_timeval = { seconds, 0 };
if (sys_select(0, 0, 0, 0, &my_timeval) < 0)
if (sys_select(0, NULL, NULL, NULL, &my_timeval) < 0)
return my_timeval.tv_sec + !!my_timeval.tv_usec;
else
return 0;
@@ -78,7 +78,7 @@ int usleep(unsigned int usecs)
{
struct timeval my_timeval = { usecs / 1000000, usecs % 1000000 };
return sys_select(0, 0, 0, 0, &my_timeval);
return sys_select(0, NULL, NULL, NULL, &my_timeval);
}
static __attribute__((unused))