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drm/ati_pcigart: Fix error code in drm_ati_pcigart_init() 

The drm_ati_pcigart_init() function was originally suppose to return one
on success and zero on failure, but these days it returns a mix of
zero, one and -ENOMEM on failure.

This patch cleans it up and modifies the caller so now the function
returns zero on success and negative error codes on failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181217070344.GC12159@kadam
This commit is contained in:
Dan Carpenter 2018-12-17 10:03:44 +03:00 committed by Daniel Vetter
parent 705c8160ce
commit c27889ca3b
2 changed files with 7 additions and 5 deletions
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7
drivers/gpu/drm/ati_pcigart.c
View File

@ -103,7 +103,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
unsigned long pages;
u32 *pci_gart = NULL, page_base, gart_idx;
dma_addr_t bus_address = 0;
int i, j, ret = 0;
int i, j, ret = -ENOMEM;
int max_ati_pages, max_real_pages;
if (!entry) {
@ -117,7 +117,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
if (pci_set_dma_mask(dev->pdev, gart_info->table_mask)) {
DRM_ERROR("fail to set dma mask to 0x%Lx\n",
(unsigned long long)gart_info->table_mask);
ret = 1;
ret = -EFAULT;
goto done;
}
@ -160,6 +160,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
drm_ati_pcigart_cleanup(dev, gart_info);
address = NULL;
bus_address = 0;
ret = -ENOMEM;
goto done;
}
page_base = (u32) entry->busaddr[i];
@ -188,7 +189,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
page_base += ATI_PCIGART_PAGE_SIZE;
}
}
ret = 1;
ret = 0;
#if defined(__i386__) || defined(__x86_64__)
wbinvd();

5
drivers/gpu/drm/r128/r128_cce.c
View File

@ -560,11 +560,12 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
dev_priv->gart_info.addr = NULL;
dev_priv->gart_info.bus_addr = 0;
dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {
rc = drm_ati_pcigart_init(dev, &dev_priv->gart_info);
if (rc) {
DRM_ERROR("failed to init PCI GART!\n");
dev->dev_private = (void *)dev_priv;
r128_do_cleanup_cce(dev);
return -ENOMEM;
return rc;
}
R128_WRITE(R128_PCI_GART_PAGE, dev_priv->gart_info.bus_addr);
#if IS_ENABLED(CONFIG_AGP)