Fix waitall() condition

1 files changed, 1 insertions, 2 deletions

diff --git a/pipeln.c b/pipeln.c
index f70f695..7c30841 100644
--- a/pipeln.c
+++ b/pipeln.c
@@ -112,7 +112,6 @@ waitall(pid_t tpid)
 	int status, exitcode;
 	pid_t pid;
 
-	errno = 0;
 	exitcode = 0;
 	do {
 		pid = waitpid(-1, &status, 0);
@@ -124,7 +123,7 @@ waitall(pid_t tpid)
 			else if (!exitcode && WIFSIGNALED(status))
 				exitcode = 128 + WTERMSIG(status);
 		}
-	} while (pid >= 0 && errno != ECHILD);
+	} while (pid >= 0 || errno != ECHILD);
 
 	exit(exitcode);
 }