1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f1a5da44591d..fea6f8d71fa3 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -958,6 +958,9 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr)
                 return -EINVAL;
         }
 
+        if (!dev)
+                return -EINVAL;
+
         dev->cpu = pr->id;
 
         if (max_cstate == 0)