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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-03-13 20:55:36 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-03-13 20:55:36 +0000 |
| commit | 93ebd4f58dceab85f377e0251503af8d7c57e699 (patch) | |
| tree | ece2324b60dc54b224061a0a29b25b995236b360 | |
| parent | 5df955fce2fbdc5b2acc365a120327ff943403da (diff) | |
| download | busybox-w32-93ebd4f58dceab85f377e0251503af8d7c57e699.tar.gz busybox-w32-93ebd4f58dceab85f377e0251503af8d7c57e699.tar.bz2 busybox-w32-93ebd4f58dceab85f377e0251503af8d7c57e699.zip | |
ash: popstackmark is reported trying to pop until NULL
is seen (which isn't possible), prevent this.
| -rw-r--r-- | shell/ash.c | 3 |
1 files changed, 3 insertions, 0 deletions
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) | |||
| 1216 | { | 1216 | { |
| 1217 | struct stack_block *sp; | 1217 | struct stack_block *sp; |
| 1218 | 1218 | ||
| 1219 | if (!mark->stackp) | ||
| 1220 | return; | ||
| 1221 | |||
| 1219 | INT_OFF; | 1222 | INT_OFF; |
| 1220 | markp = mark->marknext; | 1223 | markp = mark->marknext; |
| 1221 | while (stackp != mark->stackp) { | 1224 | while (stackp != mark->stackp) { |