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-rw-r--r--kernel/futex.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index e6a4d72..4000454 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -802,8 +802,10 @@ retry:
ret = get_user(dummy, uaddr2);
if (ret)
- return ret;
+ goto out_put_keys;
+ put_futex_key(fshared, &key2);
+ put_futex_key(fshared, &key1);
goto retryfull;
}
@@ -878,6 +880,9 @@ retry:
if (hb1 != hb2)
spin_unlock(&hb2->lock);
+ put_futex_key(fshared, &key2);
+ put_futex_key(fshared, &key1);
+
ret = get_user(curval, uaddr1);
if (!ret)
@@ -1453,6 +1458,7 @@ retry_locked:
* exit to complete.
*/
queue_unlock(&q, hb);
+ put_futex_key(fshared, &q.key);
cond_resched();
goto retry;
@@ -1595,13 +1601,12 @@ uaddr_faulted:
ret = get_user(uval, uaddr);
if (!ret)
- goto retry;
+ goto retry_unlocked;
- if (to)
- destroy_hrtimer_on_stack(&to->timer);
- return ret;
+ goto out_put_key;
}
+
/*
* Userspace attempted a TID -> 0 atomic transition, and failed.
* This is the in-kernel slowpath: we look up the PI state (if any),
@@ -1705,6 +1710,7 @@ pi_faulted:
}
ret = get_user(uval, uaddr);
+ put_futex_key(fshared, &key);
if (!ret)
goto retry;
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