diff mbox series

[07/22] loongarch/cpu: Make sure play_dead() doesn't return

Message ID 054ac5118731ae340a8bb7026a15ab78bf57ae89.1675461757.git.jpoimboe@kernel.org
State New
Headers show
Series cpu,sched: Mark arch_cpu_idle_dead() __noreturn | expand

Commit Message

Josh Poimboeuf Feb. 3, 2023, 10:05 p.m. UTC 
play_dead() doesn't return.  Make that more explicit with a BUG().

BUG() is preferable to unreachable() because BUG() is a more explicit
failure mode and avoids undefined behavior like falling off the edge of
the function into whatever code happens to be next.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
 arch/loongarch/kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index 8c6e227cb29d..51f328169a7b 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -336,7 +336,7 @@  void play_dead(void)
 	iocsr_write32(0xffffffff, LOONGARCH_IOCSR_IPI_CLEAR);
 
 	init_fn();
-	unreachable();
+	BUG();
 }
 
 #endif