diff options
Diffstat (limited to 'drivers/gpu/drm/drm_pci.c')
| -rw-r--r-- | drivers/gpu/drm/drm_pci.c | 41 |
1 files changed, 10 insertions, 31 deletions
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c index 020cfd93485..7563130c6b7 100644 --- a/drivers/gpu/drm/drm_pci.c +++ b/drivers/gpu/drm/drm_pci.c @@ -127,34 +127,20 @@ static int drm_get_pci_domain(struct drm_device *dev) return pci_domain_nr(dev->pdev->bus); } -static int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master) +int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master) { - int len, ret; - master->unique_len = 40; - master->unique_size = master->unique_len; - master->unique = kmalloc(master->unique_size, GFP_KERNEL); - if (master->unique == NULL) + master->unique = kasprintf(GFP_KERNEL, "pci:%04x:%02x:%02x.%d", + drm_get_pci_domain(dev), + dev->pdev->bus->number, + PCI_SLOT(dev->pdev->devfn), + PCI_FUNC(dev->pdev->devfn)); + if (!master->unique) return -ENOMEM; - - len = snprintf(master->unique, master->unique_len, - "pci:%04x:%02x:%02x.%d", - drm_get_pci_domain(dev), - dev->pdev->bus->number, - PCI_SLOT(dev->pdev->devfn), - PCI_FUNC(dev->pdev->devfn)); - - if (len >= master->unique_len) { - DRM_ERROR("buffer overflow"); - ret = -EINVAL; - goto err; - } else - master->unique_len = len; - + master->unique_len = strlen(master->unique); return 0; -err: - return ret; } +EXPORT_SYMBOL(drm_pci_set_busid); int drm_pci_set_unique(struct drm_device *dev, struct drm_master *master, @@ -163,8 +149,7 @@ int drm_pci_set_unique(struct drm_device *dev, int domain, bus, slot, func, ret; master->unique_len = u->unique_len; - master->unique_size = u->unique_len + 1; - master->unique = kmalloc(master->unique_size, GFP_KERNEL); + master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL); if (!master->unique) { ret = -ENOMEM; goto err; @@ -269,10 +254,6 @@ void drm_pci_agp_destroy(struct drm_device *dev) } } -static struct drm_bus drm_pci_bus = { - .set_busid = drm_pci_set_busid, -}; - /** * drm_get_pci_dev - Register a PCI device with the DRM subsystem * @pdev: PCI device @@ -353,8 +334,6 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver) DRM_DEBUG("\n"); - driver->bus = &drm_pci_bus; - if (driver->driver_features & DRIVER_MODESET) return pci_register_driver(pdriver); |