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Subject[PATCH v0 05/42] dca: Check notifier registration return value
Date
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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