AGP: Warn when GATT memory cannot be set to UC

[linux-drm-fsl-dcu.git] / drivers / char / agp / generic.c

diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index d2abf51439836383fd9b03612a44bdf1779448fa..64255cef8a7db93f780c700d712c5fa4b7fe5907 100644 (file)
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -984,7 +984,9 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
 
        bridge->driver->cache_flush();
 #ifdef CONFIG_X86
-       set_memory_uc((unsigned long)table, 1 << page_order);
+       if (set_memory_uc((unsigned long)table, 1 << page_order))
+               printk(KERN_WARNING "Could not set GATT table memory to UC!");
+
        bridge->gatt_table = (void *)table;
 #else
        bridge->gatt_table = ioremap_nocache(virt_to_phys(table),