drm/ast: Remove reference to struct drm_device.pdev

Using struct drm_device.pdev is deprecated. Upcast with to_pci_dev()
from struct drm_device.dev to get the PCI device structure.

v9:
	* fix remaining pdev references

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Fixes: ba4e0339a6a3 ("drm/ast: Fixed CVE for DP501")
Cc: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-2-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 189d783..2aff2e6 100644 (file)
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -411,7 +411,6 @@ struct ast_private *ast_device_create(const struct drm_driver *drv,
                return ast;
        dev = &ast->base;
 
-       dev->pdev = pdev;
        pci_set_drvdata(pdev, dev);
 
        ast->regs = pcim_iomap(pdev, 1, 0);
@@ -453,8 +452,8 @@ struct ast_private *ast_device_create(const struct drm_driver *drv,
 
        /* map reserved buffer */
        ast->dp501_fw_buf = NULL;
-       if (dev->vram_mm->vram_size < pci_resource_len(dev->pdev, 0)) {
-               ast->dp501_fw_buf = pci_iomap_range(dev->pdev, 0, dev->vram_mm->vram_size, 0);
+       if (dev->vram_mm->vram_size < pci_resource_len(pdev, 0)) {
+               ast->dp501_fw_buf = pci_iomap_range(pdev, 0, dev->vram_mm->vram_size, 0);
                if (!ast->dp501_fw_buf)
                        drm_info(dev, "failed to map reserved buffer!\n");
        }