Merge tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc...

[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / ast / ast_main.c

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index d85af0ff2653b8a8b5d0c874fe912d3bf27f8f3b..dcdd59d505bdcc17f70e835721cbe1ea44f541b7 100644 (file)
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -223,7 +223,8 @@ static int ast_get_dram_info(struct drm_device *dev)
        ast_write32(ast, 0x10000, 0xfc600309);
 
        do {
-               ;
+               if (pci_channel_offline(dev->pdev))
+                       return -EIO;
        } while (ast_read32(ast, 0x10000) != 0x01);
        data = ast_read32(ast, 0x10004);
 
@@ -428,7 +429,9 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
        ast_detect_chip(dev, &need_post);
 
        if (ast->chip != AST1180) {
-               ast_get_dram_info(dev);
+               ret = ast_get_dram_info(dev);
+               if (ret)
+                       goto out_free;
                ast->vram_size = ast_get_vram_info(dev);
                DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
        }