2 files changed, 14 insertions, 2 deletions

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 918e484f41b7..c1c07a2ccb11 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -10,6 +10,9 @@
 #include <linux/agp_backend.h>
 #include "agp.h"
 
+int intel_agp_enabled;
+EXPORT_SYMBOL(intel_agp_enabled);
+
 /*
  * If we have Intel graphics, we're not going to have anything other than
  * an Intel IOMMU. So make the correct use of the PCI DMA API contingent
@@ -2473,7 +2476,7 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
         struct agp_bridge_data *bridge;
         u8 cap_ptr = 0;
         struct resource *r;
-        int i;
+        int i, err;
 
         cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
 
@@ -2565,7 +2568,10 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
         }
 
         pci_set_drvdata(pdev, bridge);
-        return agp_add_bridge(bridge);
+        err = agp_add_bridge(bridge);
+        if (!err)
+                intel_agp_enabled = 1;
+        return err;
 }
 
 static void __devexit agp_intel_remove(struct pci_dev *pdev)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 2a9178bb2748..85ad020125c8 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -49,6 +49,7 @@ unsigned int i915_lvds_downclock = 0;
 module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
 
 static struct drm_driver driver;
+extern int intel_agp_enabled;
 
 #define INTEL_VGA_DEVICE(id, info) {            \
         .class = PCI_CLASS_DISPLAY_VGA << 8,    \
@@ -558,6 +559,11 @@ static struct drm_driver driver = {
 
 static int __init i915_init(void)
 {
+        if (!intel_agp_enabled) {
+                DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
+                return -ENODEV;
+        }
+
         driver.num_ioctls = i915_max_ioctl;
 
         i915_gem_shrinker_init();