tree e67220d57359519a806ac70d894b423b2c14ca84
parent c1eef220c1760762753b602c382127bfccee226d
author Cong Wang <xiyou.wangcong@gmail.com> 1508885089 -0700
committer David S. Miller <davem@davemloft.net> 1509007613 +0900

tipc: fix a dangling pointer

tsk->group is set to grp earlier, but we forget to unset it
after grp is freed.

Fixes: 75da2163dbb6 ("tipc: introduce communication groups")
Reported-by: syzkaller bot
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>