[PATCH bpf-next v1] rqspinlock: Adjust return value for queue destruction

Return -ETIMEDOUT whenever non-head waiters are signalled by head, and fix
oversight in commit 7bd6e5ce5be6 ("rqspinlock: Disable queue destruction for
deadlocks"). We no longer signal on deadlocks.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
---
 kernel/bpf/rqspinlock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/rqspinlock.c b/kernel/bpf/rqspinlock.c
index b94e258bf2b9..3cc23d79a9fc 100644
--- a/kernel/bpf/rqspinlock.c
+++ b/kernel/bpf/rqspinlock.c

@@ -537,7 +537,7 @@ int __lockfunc resilient_queued_spin_lock_slowpath(rqspinlock_t *lock, u32 val)

                val = arch_mcs_spin_lock_contended(&node->locked);
                if (val == RES_TIMEOUT_VAL) {
-                       ret = -EDEADLK;
+                       ret = -ETIMEDOUT;