Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c
index efacc9f8bfe3..c33b1c6e93b1 100644
--- a/drivers/acpi/wmi.c
+++ b/drivers/acpi/wmi.c
@@ -293,7 +293,7 @@ struct acpi_buffer *out)
 {
         struct guid_block *block = NULL;
         struct wmi_block *wblock = NULL;
-        acpi_handle handle;
+        acpi_handle handle, wc_handle;
         acpi_status status, wc_status = AE_ERROR;
         struct acpi_object_list input, wc_input;
         union acpi_object wc_params[1], wq_params[1];
@@ -338,8 +338,10 @@ struct acpi_buffer *out)
                  * expensive, but have no corresponding WCxx method. So we
                  * should not fail if this happens.
                  */
-                wc_status = acpi_evaluate_object(handle, wc_method,
-                        &wc_input, NULL);
+                wc_status = acpi_get_handle(handle, wc_method, &wc_handle);
+                if (ACPI_SUCCESS(wc_status))
+                        wc_status = acpi_evaluate_object(handle, wc_method,
+                                &wc_input, NULL);
         }
 
         strcpy(method, "WQ");
@@ -351,7 +353,7 @@ struct acpi_buffer *out)
          * If ACPI_WMI_EXPENSIVE, call the relevant WCxx method, even if
          * the WQxx method failed - we should disable collection anyway.
          */
-        if ((block->flags & ACPI_WMI_EXPENSIVE) && wc_status) {
+        if ((block->flags & ACPI_WMI_EXPENSIVE) && ACPI_SUCCESS(wc_status)) {
                 wc_params[0].integer.value = 0;
                 status = acpi_evaluate_object(handle,
                 wc_method, &wc_input, NULL);