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-rw-r--r--kernel/futex.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index 8cc3ee1363a0..e18cfbdc7190 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1256,8 +1256,15 @@ retry_private:
1256 if (!match_futex(&this->key, &key1)) 1256 if (!match_futex(&this->key, &key1))
1257 continue; 1257 continue;
1258 1258
1259 WARN_ON(!requeue_pi && this->rt_waiter); 1259 /*
1260 WARN_ON(requeue_pi && !this->rt_waiter); 1260 * FUTEX_WAIT_REQEUE_PI and FUTEX_CMP_REQUEUE_PI should always
1261 * be paired with each other and no other futex ops.
1262 */
1263 if ((requeue_pi && !this->rt_waiter) ||
1264 (!requeue_pi && this->rt_waiter)) {
1265 ret = -EINVAL;
1266 break;
1267 }
1261 1268
1262 /* 1269 /*
1263 * Wake nr_wake waiters. For requeue_pi, if we acquired the 1270 * Wake nr_wake waiters. For requeue_pi, if we acquired the