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Subject[PATCH v0 13/42] power: reset: 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>
Cc: linux-pm@vger.kernel.org
---
drivers/power/reset/ltc2952-poweroff.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c
index fbb344353fe4..6ca251e4b1be 100644
--- a/drivers/power/reset/ltc2952-poweroff.c
+++ b/drivers/power/reset/ltc2952-poweroff.c
@@ -279,8 +279,10 @@ static int ltc2952_poweroff_probe(struct platform_device *pdev)
pm_power_off = ltc2952_poweroff_kill;

data->panic_notifier.notifier_call = ltc2952_poweroff_notify_panic;
- atomic_notifier_chain_register(&panic_notifier_list,
- &data->panic_notifier);
+
+ if (atomic_notifier_chain_register(&panic_notifier_list, &data->panic_notifier))
+ pr_warn("LTC2952 panic notifier already registered\n");
+
dev_info(&pdev->dev, "probe successful\n");

return 0;
--
2.29.2
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