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-rw-r--r--ChangeLog1
-rw-r--r--src/eval.c6
-rw-r--r--src/redir.c14
3 files changed, 6 insertions, 15 deletions
diff --git a/ChangeLog b/ChangeLog
index 4fc35a6..1fd184b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,7 @@
 
 	* Fix poplocalvar on abnormal exit from function.
 	* Do not poplocalvars prematurely on regular utilities.
+	* Move null redirect checks into caller.
 
 2010-05-26  Herbert Xu <herbert@gondor.apana.org.au>
 
diff --git a/src/eval.c b/src/eval.c
index 337667f..59bded9 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -224,7 +224,8 @@ evaltree(union node *n, int flags)
 			evaltree(n->nredir.n, flags & EV_TESTED);
 			status = exitstatus;
 		}
-		popredir(0);
+		if (n->nredir.redirect)
+			popredir(0);
 		goto setstatus;
 	case NCMD:
 #ifdef notyet
@@ -879,7 +880,8 @@ raise:
 	}
 
 out:
-	popredir(execcmd);
+	if (cmd->ncmd.redirect)
+		popredir(execcmd);
 	unwindlocalvars(localvar_stop);
 	if (lastarg)
 		/* dsl: I think this is intended to be used to support
diff --git a/src/redir.c b/src/redir.c
index 54af96b..16decfc 100644
--- a/src/redir.c
+++ b/src/redir.c
@@ -72,12 +72,10 @@ MKINIT
 struct redirtab {
 	struct redirtab *next;
 	int renamed[10];
-	int nullredirs;
 };
 
 
 MKINIT struct redirtab *redirlist;
-MKINIT int nullredirs;
 
 STATIC int openredirect(union node *);
 #ifdef notyet
@@ -113,7 +111,6 @@ redirect(union node *redir, int flags)
 		memory[i] = 0;
 	memory[1] = flags & REDIR_BACKQ;
 #endif
-	nullredirs++;
 	if (!redir) {
 		return;
 	}
@@ -124,10 +121,8 @@ redirect(union node *redir, int flags)
 		q = ckmalloc(sizeof (struct redirtab));
 		q->next = redirlist;
 		redirlist = q;
-		q->nullredirs = nullredirs - 1;
 		for (i = 0 ; i < 10 ; i++)
 			q->renamed[i] = EMPTY;
-		nullredirs = 0;
 		sv = q;
 	}
 	n = redir;
@@ -343,8 +338,6 @@ popredir(int drop)
 	struct redirtab *rp;
 	int i;
 
-	if (--nullredirs >= 0)
-		return;
 	INTOFF;
 	rp = redirlist;
 	for (i = 0 ; i < 10 ; i++) {
@@ -364,7 +357,6 @@ popredir(int drop)
 		}
 	}
 	redirlist = rp->next;
-	nullredirs = rp->nullredirs;
 	ckfree(rp);
 	INTON;
 }
@@ -381,12 +373,8 @@ RESET {
 	/*
 	 * Discard all saved file descriptors.
 	 */
-	for (;;) {
-		nullredirs = 0;
-		if (!redirlist)
-			break;
+	while (redirlist)
 		popredir(0);
-	}
 }
 
 #endif