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Diffstat (limited to 'drivers/acpi/utils.c')
-rw-r--r--drivers/acpi/utils.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index eba55b7d6c95..100926143818 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -398,7 +398,7 @@ acpi_evaluate_reference(acpi_handle handle,
element = &(package->package.elements[i]);
- if (element->type != ACPI_TYPE_ANY) {
+ if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
status = AE_BAD_DATA;
printk(KERN_ERR PREFIX
"Expecting a [Reference] package element, found type %X\n",
@@ -407,6 +407,12 @@ acpi_evaluate_reference(acpi_handle handle,
break;
}
+ if (!element->reference.handle) {
+ printk(KERN_WARNING PREFIX "Invalid reference in"
+ " package %s\n", pathname);
+ status = AE_NULL_ENTRY;
+ break;
+ }
/* Get the acpi_handle. */
list->handles[i] = element->reference.handle;