drm: ati_pcigart cleanup

use NULL instead of 0, cleanup some whitespace

diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c
index 1431792..bbdb841 100644 (file)
--- a/linux-core/ati_pcigart.c
+++ b/linux-core/ati_pcigart.c
@@ -62,7 +62,7 @@ static void *drm_ati_alloc_pcigart_table(void)
        address = __get_free_pages(GFP_KERNEL | __GFP_COMP,
                                   ATI_PCIGART_TABLE_ORDER);
        if (address == 0UL) {
-               return 0;
+               return NULL;
        }
 
        page = virt_to_page(address);
@@ -126,21 +126,21 @@ int drm_ati_pcigart_cleanup(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
                }
 
                if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
-                       gart_info->bus_addr=0;
+                       gart_info->bus_addr = 0;
        }
 
 
        if (gart_info->gart_table_location == DRM_ATI_GART_MAIN
            && gart_info->addr) {
                drm_ati_free_pcigart_table(gart_info->addr);
-               gart_info->addr=0;
+               gart_info->addr = NULL;
        }
 
        return 1;
 }
 EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
 
-int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info)
+int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
 {
        drm_sg_mem_t *entry = dev->sg;
        void *address = NULL;
@@ -155,25 +155,25 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info)
 
        if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
                DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
-               
+
                address = drm_ati_alloc_pcigart_table();
                if (!address) {
                        DRM_ERROR("cannot allocate PCI GART page!\n");
                        goto done;
                }
-               
+
                if (!dev->pdev) {
                        DRM_ERROR("PCI device unknown!\n");
                        goto done;
                }
-               
+
                bus_address = pci_map_single(dev->pdev, address,
                                             ATI_PCIGART_TABLE_PAGES *
                                             PAGE_SIZE, PCI_DMA_TODEVICE);
                if (bus_address == 0) {
                        DRM_ERROR("unable to map PCIGART pages!\n");
                        drm_ati_free_pcigart_table(address);
-                       address = 0;
+                       address = NULL;
                        goto done;
                }
        } else {
@@ -207,7 +207,7 @@ int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info)
 
                for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
                        if (gart_info->is_pcie)
-                               *pci_gart = cpu_to_le32((page_base>>8) | 0xc);
+                               *pci_gart = cpu_to_le32((page_base >> 8) | 0xc);
                        else
                                *pci_gart = cpu_to_le32(page_base);
                        pci_gart++;