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

Josh Poimboeuf
2023-02-14T07:07:28Z

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 --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 */

--
2.39.1