From e088ffa9a00eaaaf90da74763e774ca160969c26 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 12 May 2026 10:48:23 +0200 Subject: [PATCH] hwspinlock: propagate errno when registering single lock hwspin_lock_register_single() always returns 0 despite checking the result from radix_tree_insert(). Propagate the errno to make sanity checks in callers of this function actually meaningful. Fixes: 300bab9770e2 ("hwspinlock/core: register a bank of hwspinlocks in a single API call") Link: https://sashiko.dev/#/patchset/20260319105947.6237-1-wsa%2Brenesas%40sang-engineering.com # review of patch 14 Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20260512084856.30497-2-wsa+renesas@sang-engineering.com Signed-off-by: Bjorn Andersson --- drivers/hwspinlock/hwspinlock_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c index cc8e952a6772..a509b73da190 100644 --- a/drivers/hwspinlock/hwspinlock_core.c +++ b/drivers/hwspinlock/hwspinlock_core.c @@ -472,7 +472,7 @@ static int hwspin_lock_register_single(struct hwspinlock *hwlock, int id) out: mutex_unlock(&hwspinlock_tree_lock); - return 0; + return ret; } static struct hwspinlock *hwspin_lock_unregister_single(unsigned int id)