summaryrefslogtreecommitdiff
path: root/drivers/char/agp/intel-gtt.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/agp/intel-gtt.c')
-rw-r--r--drivers/char/agp/intel-gtt.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9344216183a4..f97122a53ca3 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -797,6 +797,10 @@ static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
+ if (intel_private.gtt_entries == 0) {
+ iounmap(intel_private.registers);
+ return -ENOMEM;
+ }
agp_bridge->gatt_table = NULL;
@@ -1279,6 +1283,11 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
+ if (intel_private.gtt_entries == 0) {
+ iounmap(intel_private.gtt);
+ iounmap(intel_private.registers);
+ return -ENOMEM;
+ }
agp_bridge->gatt_table = NULL;
@@ -1387,6 +1396,11 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
+ if (intel_private.gtt_entries == 0) {
+ iounmap(intel_private.gtt);
+ iounmap(intel_private.registers);
+ return -ENOMEM;
+ }
agp_bridge->gatt_table = NULL;