--- libaitio/src/exec.c	2013/12/12 21:59:01	1.1.2.19
+++ libaitio/src/exec.c	2013/12/12 23:06:45	1.1.2.20
@@ -384,7 +384,7 @@ io_progCheck(prog_t * __restrict prg, int re)
 #else
 				(p = pio_pgetpid((int) array(prg->prog_fds, i, intptr_t))))
 #endif
-			if (waitpid(p->pid, &p->stat, WNOHANG) > 0) {
+			if (waitpid(p->pid, &p->stat, WNOHANG)) {
 				clrbit(prg->prog_used, i);
 #ifdef POPEN_STREAM
 				e_pclose(array(prg->prog_fds, i, FILE*));
@@ -445,18 +445,18 @@ io_progAttach(prog_t * __restrict prg, int newOne)
 		}
 	pthread_mutex_unlock(&prg->prog_mtx);
 
-	/* not found free program */
-	if (!f && (i = io_progOpen2(prg)) > 0) {
+	/* execute new one program */
+	if (newOne) {
+		if (f)
+			io_progOpen(prg, 1);
+		else if ((i = io_progOpen2(prg)) > -1)
+			/* not found free program */
 #ifdef POPEN_STREAM
-		f = array(prg->prog_fds, i, FILE*);
+			f = array(prg->prog_fds, i, FILE*);
 #else
-		f = array(prg->prog_fds, i, intptr_t);
+			f = array(prg->prog_fds, i, intptr_t);
 #endif
 	}
-
-	/* execute new one program */
-	if (newOne && f)
-		io_progOpen(prg, 1);
 
 	return f;
 }