[PATCH] acpi: fix 'return' with no value build warning

[Neal Liu]

Fixing CFI issue which introduced by commit efe9711214e6 is
incomplete.
Add return value to fix return-type build warning.

Signed-off-by: Neal Liu <neal....@mediatek.com>
---
 drivers/acpi/processor_idle.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 6ffb6c9..6870020 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -664,11 +664,11 @@ static int acpi_idle_enter_s2idle(struct cpuidle_device 
*dev,
                struct acpi_processor *pr = __this_cpu_read(processors);
 
                if (unlikely(!pr))
-                       return;
+                       return -EFAULT;
 
                if (pr->flags.bm_check) {
                        acpi_idle_enter_bm(pr, cx, false);
-                       return;
+                       return 0;
                } else {
                        ACPI_FLUSH_CPU_CACHE();
                }
-- 
1.7.9.5