[PATCH v0 29/42] arm64: Check notifier registration return value
From: Borislav Petkov <bp@alien8.de>
Date: 2021-11-08 10:16:29
Also in:
lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
From: Borislav Petkov <redacted> Avoid homegrown notifier registration checks. No functional changes. Signed-off-by: Borislav Petkov <redacted> Cc: linux-arm-kernel@lists.infradead.org --- arch/arm64/kernel/setup.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index be5f85b0a24d..e66af9de7cd7 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c@@ -440,8 +440,10 @@ static struct notifier_block arm64_panic_block = { static int __init register_arm64_panic_block(void) { - atomic_notifier_chain_register(&panic_notifier_list, - &arm64_panic_block); + if (atomic_notifier_chain_register(&panic_notifier_list, + &arm64_panic_block)) + pr_warn("Panic notifier already registered\n"); + return 0; } device_initcall(register_arm64_panic_block);
--
2.29.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel