--- pidof.c.orig	2012-05-22 19:58:29.883164290 -0400
+++ pidof.c	2012-05-22 20:01:07.063106029 -0400
@@ -56,10 +56,10 @@ get_pid_of_process(const char *process_n
 	char *pname = NULL;
 
 	if (process_name == NULL)
-		return;
+		return 0;
 
 	if ((pname = strdup(basename(process_name))) == NULL)
-		return;
+		return 0;
 	
 	if ((kd = kvm_open("/dev/null", "/dev/null", "/dev/null", O_RDONLY, NULL)) == NULL) {
 		free(pname);