diff mbox series

[v2,02/24] alpha/cpu: Make sure arch_cpu_idle_dead() doesn't return

Message ID 19ffef09a175fecb783abcd44d6bcfeade2857eb.1676358308.git.jpoimboe@kernel.org (mailing list archive)
State Handled Elsewhere
Headers show
Series cpu,sched: Mark arch_cpu_idle_dead() __noreturn | expand

Commit Message

Josh Poimboeuf Feb. 14, 2023, 7:05 a.m. UTC 
arch_cpu_idle_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/alpha/kernel/process.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index d1f2e8b6b107..d0ff06eda8fa 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -63,6 +63,7 @@  void arch_cpu_idle(void)
 void arch_cpu_idle_dead(void)
 {
 	wtint(INT_MAX);
+	BUG();
 }
 #endif /* ALPHA_WTINT */