drm/vgem: Fix vgem_init to get drm device available.

Modify vgem_init to take platform dev as parent in drm_dev_init.
This will make drm device available at "/sys/devices/platform/vgem"
in x86 chromebook.

v2: rebase, address checkpatch typo and line over 80 characters

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Deepak Sharma <deepak.sharma@amd.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181023163550.15211-1-emil.l.velikov@gmail.com

1 files changed, 8 insertions, 8 deletions

diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index ec6af8b920da..f1f7ab9dcdbf 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -471,31 +471,31 @@ static int __init vgem_init(void)
         if (!vgem_device)
                 return -ENOMEM;
 
-        ret = drm_dev_init(&vgem_device->drm, &vgem_driver, NULL);
-        if (ret)
-                goto out_free;
-
         vgem_device->platform =
                 platform_device_register_simple("vgem", -1, NULL, 0);
         if (IS_ERR(vgem_device->platform)) {
                 ret = PTR_ERR(vgem_device->platform);
-                goto out_fini;
+                goto out_free;
         }
 
         dma_coerce_mask_and_coherent(&vgem_device->platform->dev,
                                      DMA_BIT_MASK(64));
+        ret = drm_dev_init(&vgem_device->drm, &vgem_driver,
+                           &vgem_device->platform->dev);
+        if (ret)
+                goto out_unregister;
 
         /* Final step: expose the device/driver to userspace */
         ret  = drm_dev_register(&vgem_device->drm, 0);
         if (ret)
-                goto out_unregister;
+                goto out_fini;
 
         return 0;
 
-out_unregister:
-        platform_device_unregister(vgem_device->platform);
 out_fini:
         drm_dev_fini(&vgem_device->drm);
+out_unregister:
+        platform_device_unregister(vgem_device->platform);
 out_free:
         kfree(vgem_device);
         return ret;