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Initialize procs closer to the place were it is used.

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Free can properly handle NULL pointer (but keep free() call on the premise
that the code might be reused).
Show errno when realloc failed.

MFC after:	3 days
This commit is contained in:
Konstantin Belousov 2012-06-30 16:20:01 +00:00
parent 5f42fa1793
commit 40bcb503f1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=237844
1 changed files with 5 additions and 5 deletions
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10
usr.bin/killall/killall.c
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@ -90,7 +90,7 @@ nosig(char *name)
int
main(int ac, char **av)
{
struct kinfo_proc *procs = NULL, *newprocs;
struct kinfo_proc *procs, *newprocs;
struct stat sb;
struct passwd *pw;
regex_t rgx;
@ -292,14 +292,14 @@ main(int ac, char **av)
miblen = 4;
}
procs = NULL;
st = sysctl(mib, miblen, NULL, &size, NULL, 0);
do {
size += size / 10;
newprocs = realloc(procs, size);
if (newprocs == 0) {
if (procs)
free(procs);
errx(1, "could not reallocate memory");
if (newprocs == NULL) {
free(procs);
err(1, "could not reallocate memory");
}
procs = newprocs;
st = sysctl(mib, miblen, procs, &size, NULL, 0);