1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 73f333f491bd..27bca34b4a65 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -147,6 +147,7 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
                         printk(KERN_ERR PFX "unable to get memory for scratch page.\n");
                         return -ENOMEM;
                 }
+                flush_agp_mappings();
 
                 bridge->scratch_page_real = virt_to_gart(addr);
                 bridge->scratch_page =
@@ -187,9 +188,11 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
         return 0;
 
 err_out:
-        if (bridge->driver->needs_scratch_page)
+        if (bridge->driver->needs_scratch_page) {
                 bridge->driver->agp_destroy_page(
                                 gart_to_virt(bridge->scratch_page_real));
+                flush_agp_mappings();
+        }
         if (got_gatt)
                 bridge->driver->free_gatt_table(bridge);
         if (got_keylist) {
@@ -211,9 +214,11 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
         bridge->key_list = NULL;
 
         if (bridge->driver->agp_destroy_page &&
-            bridge->driver->needs_scratch_page)
+            bridge->driver->needs_scratch_page) {
                 bridge->driver->agp_destroy_page(
                                 gart_to_virt(bridge->scratch_page_real));
+                flush_agp_mappings();
+        }
 }
 
 /* When we remove the global variable agp_bridge from all drivers