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authorDenis Vlasenko2007-03-13 20:55:36 +0000
committerDenis Vlasenko2007-03-13 20:55:36 +0000
commit93ebd4f58dceab85f377e0251503af8d7c57e699 (patch)
treeece2324b60dc54b224061a0a29b25b995236b360
parent5df955fce2fbdc5b2acc365a120327ff943403da (diff)
downloadbusybox-93ebd4f58dceab85f377e0251503af8d7c57e699.zip
busybox-93ebd4f58dceab85f377e0251503af8d7c57e699.tar.gz
ash: popstackmark is reported trying to pop until NULL
is seen (which isn't possible), prevent this.
-rw-r--r--shell/ash.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/shell/ash.c b/shell/ash.c
index bfa4a8c..29156c1 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) {