| From | Borislav Petkov <> | Subject | [PATCH v0 05/42] dca: Check notifier registration return value | Date | Mon, 8 Nov 2021 11:11:20 +0100 |
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From: Borislav Petkov <bp@suse.de>
Avoid homegrown notifier registration checks.
No functional changes.
Signed-off-by: Borislav Petkov <bp@suse.de> --- drivers/dca/dca-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/dca/dca-core.c b/drivers/dca/dca-core.c index c40c2ebfdae9..3e8f52214652 100644 --- a/drivers/dca/dca-core.c +++ b/drivers/dca/dca-core.c @@ -428,7 +428,8 @@ EXPORT_SYMBOL_GPL(unregister_dca_provider); */ void dca_register_notify(struct notifier_block *nb) { - blocking_notifier_chain_register(&dca_provider_chain, nb); + if (blocking_notifier_chain_register(&dca_provider_chain, nb)) + pr_warn("dca provider notifier already registered\n"); } EXPORT_SYMBOL_GPL(dca_register_notify); -- 2.29.2
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