mm,oom_reaper: don't call mmput_async() without atomic_inc_not_zero()

[cascardo/linux.git] / mm / oom_kill.c

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index acbc432..be67df3 100644 (file)
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -478,6 +478,7 @@ static bool __oom_reap_task(struct task_struct *tsk)
        mm = p->mm;
        if (!atomic_inc_not_zero(&mm->mm_users)) {
                task_unlock(p);
+               mm = NULL;
                goto unlock_oom;
        }