drm: Differentiate the lack of an interface from invalid parameter

[linux-2.6-microblaze.git] / drivers / gpu / drm / drm_pci.c

diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index 896e42a..48f615d 100644 (file)
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -182,14 +182,14 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
        struct drm_irq_busid *p = data;
 
        if (!drm_core_check_feature(dev, DRIVER_LEGACY))
-               return -EINVAL;
+               return -EOPNOTSUPP;
 
        /* UMS was only ever support on PCI devices. */
        if (WARN_ON(!dev->pdev))
                return -EINVAL;
 
        if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
-               return -EINVAL;
+               return -EOPNOTSUPP;
 
        return drm_pci_irq_by_busid(dev, p);
 }