From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Tue, 13 Mar 2007 20:55:36 +0000 (-0000)
Subject: ash: popstackmark is reported trying to pop until NULL
X-Git-Tag: 1_5_1~68
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=93ebd4f58dceab85f377e0251503af8d7c57e699;p=oweals%2Fbusybox.git

ash: popstackmark is reported trying to pop until NULL
is seen (which isn't possible), prevent this.
---

diff --git a/shell/ash.c b/shell/ash.c
index bfa4a8c6d..29156c199 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -1216,6 +1216,9 @@ popstackmark(struct stackmark *mark)
 {
 	struct stack_block *sp;
 
+	if (!mark->stackp)
+		return;
+
 	INT_OFF;
 	markp = mark->marknext;
 	while (stackp != mark->stackp) {