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-rw-r--r--src/util.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/util.c b/src/util.c
index 75ad56fecf..39c9db72fc 100644
--- a/src/util.c
+++ b/src/util.c
@@ -456,11 +456,11 @@ int get_parent_of_pid(pid_t pid, pid_t *_ppid) {
char fn[PATH_MAX], line[LINE_MAX], *p;
long unsigned ppid;
- assert(pid >= 0);
+ assert(pid > 0);
assert(_ppid);
assert_se(snprintf(fn, sizeof(fn)-1, "/proc/%lu/stat", (unsigned long) pid) < (int) (sizeof(fn)-1));
- fn[sizeof(fn)-1] = 0;
+ char_array_0(fn);
if (!(f = fopen(fn, "r")))
return -errno;