[PATCH v0 38/42] xtensa: Check notifier registration return value

[Borislav Petkov]

From: Borislav Petkov <bp@xxxxxxx>

Avoid homegrown notifier registration checks.

No functional changes.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: linux-xtensa@xxxxxxxxxxxxxxxx
---
 arch/xtensa/platforms/iss/setup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/xtensa/platforms/iss/setup.c b/arch/xtensa/platforms/iss/setup.c
index d3433e1bb94e..00b847e3cb76 100644
--- a/arch/xtensa/platforms/iss/setup.c
+++ b/arch/xtensa/platforms/iss/setup.c
@@ -81,5 +81,6 @@ void __init platform_setup(char **p_cmdline)
 		}
 	}
 
-	atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block);
+	if (atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block))
+		pr_warn("Panic notifier already registered\n");
 }
-- 
2.29.2