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hwspinlock: propagate errno when registering single lock

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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: 300bab9770 ("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 <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20260512084856.30497-2-wsa+renesas@sang-engineering.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Wolfram Sang 2026-05-12 10:48:23 +02:00 committed by Bjorn Andersson
parent 014be5698e
commit e088ffa9a0
1 changed files with 1 additions and 1 deletions
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2
drivers/hwspinlock/hwspinlock_core.c
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@ -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)