1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index ea77512ad70c..9d200d5029ca 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -106,6 +106,9 @@ struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
         struct acpi_device *adev, *ret = NULL;
         int ret_score = 0;
 
+        if (!parent)
+                return NULL;
+
         list_for_each_entry(adev, &parent->children, node) {
                 unsigned long long addr;
                 acpi_status status;