BUG/MINOR: lua: Fix a possible null pointer deref on lua ctx

This bug was introduced by the commit 8f587ea3 ("MEDIUM: lua: Set the analyse
expiration date with smaller wake_time only"). At the end of hlua_action(), the
lua context may be null if the alloc failed.

No backport needed, this is 2.3-dev.

diff --git a/src/hlua.c b/src/hlua.c
index a3726ca..844a5ec 100644 (file)
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -6706,7 +6706,7 @@ static enum act_return hlua_action(struct act_rule *rule, struct proxy *px,
        }
 
  end:
-       if (act_ret != ACT_RET_YIELD)
+       if (act_ret != ACT_RET_YIELD && s->hlua)
                s->hlua->wake_time = TICK_ETERNITY;
        return act_ret;
 }