Author: ngie
Date: Thu Mar 23 04:54:31 2017
New Revision: 315787
URL: https://svnweb.freebsd.org/changeset/base/315787
Log:
MFC r315360:
Return NULL instead of 0 on failure in _kvm_open, kvm_open{,2,files}
This is being done for the following reasons:
- kvm_open(3), etc says they will return NULL.
- NULL by definition is (void*)0 per POSIX, but can be redefined,
depending on the compiler, etc.
Modified:
stable/10/lib/libkvm/kvm.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/lib/libkvm/kvm.c
==============================================================================
--- stable/10/lib/libkvm/kvm.c Thu Mar 23 04:50:50 2017 (r315786)
+++ stable/10/lib/libkvm/kvm.c Thu Mar 23 04:54:31 2017 (r315787)
@@ -224,7 +224,7 @@ failed:
if (errout != 0)
strlcpy(errout, kd->errbuf, _POSIX2_LINE_MAX);
(void)kvm_close(kd);
- return (0);
+ return (NULL);
}
kvm_t *
@@ -235,7 +235,7 @@ kvm_openfiles(const char *uf, const char
if ((kd = calloc(1, sizeof(*kd))) == NULL) {
(void)strlcpy(errout, strerror(errno), _POSIX2_LINE_MAX);
- return (0);
+ return (NULL);
}
kd->program = 0;
return (_kvm_open(kd, uf, mf, flag, errout));
@@ -251,7 +251,7 @@ kvm_open(const char *uf, const char *mf,
if (errstr != NULL)
(void)fprintf(stderr, "%s: %s\n",
errstr, strerror(errno));
- return (0);
+ return (NULL);
}
kd->program = errstr;
return (_kvm_open(kd, uf, mf, flag, NULL));
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