This is a race condition fix if the timer expire occurs when the last
frame is arrived otherwise we cleanup the list entry twice.
Signed-off-by: Alexander Aring <alex.ar...@gmail.com>
---
net/ieee802154/6lowpan.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 10cf032..37c952e 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1255,8 +1255,11 @@ static int lowpan_check_frag_complete(struct
lowpan_fragment *frame)
if (frame->bytes_rcv != frame->length)
return ret;
+ ret = try_to_del_timer_sync(&frame->timer);
+ if (ret == -1)
+ return ret;
+
list_del(&frame->list);
- del_timer_sync(&frame->timer);
ret = lowpan_give_skb_to_devices(frame->skb);
kfree(frame);
--
1.8.4
------------------------------------------------------------------------------
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