lib: [procutils.c] improve robustness

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/lib/procutils.c b/lib/procutils.c
index 2c9e83722d333ea938e5adc0817018a357ef79db..2ab322522f7a01e0e1cb559b0ed9a54ca71688e7 100644 (file)
--- a/lib/procutils.c
+++ b/lib/procutils.c
@@ -72,6 +72,9 @@ int proc_next_tid(struct proc_tasks *tasks, pid_t *tid)
        struct dirent *d;
        char *end;
 
+       if (!tasks || !tid)
+               return -1;
+
        *tid = 0;
        errno = 0;