[PATCH 1/2] drm: vgem: do not use devres groups

[Danilo Krummrich]

Using devres groups in vgem is unnecessary, as the corresponding cleanup
happens automatically when the device is unbound through
faux_device_destroy().

Signed-off-by: Danilo Krummrich <d...@kernel.org>
---
 drivers/gpu/drm/vgem/vgem_drv.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index 260c64733972..d75f2ee56cf6 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -133,11 +133,6 @@ static int __init vgem_init(void)
        if (!fdev)
                return -ENODEV;
 
-       if (!devres_open_group(&fdev->dev, NULL, GFP_KERNEL)) {
-               ret = -ENOMEM;
-               goto out_unregister;
-       }
-
        dma_coerce_mask_and_coherent(&fdev->dev,
                                     DMA_BIT_MASK(64));
 
@@ -145,20 +140,18 @@ static int __init vgem_init(void)
                                         struct vgem_device, drm);
        if (IS_ERR(vgem_device)) {
                ret = PTR_ERR(vgem_device);
-               goto out_devres;
+               goto out;
        }
        vgem_device->faux_dev = fdev;
 
        /* Final step: expose the device/driver to userspace */
        ret = drm_dev_register(&vgem_device->drm, 0);
        if (ret)
-               goto out_devres;
+               goto out;
 
        return 0;
 
-out_devres:
-       devres_release_group(&fdev->dev, NULL);
-out_unregister:
+out:
        faux_device_destroy(fdev);
        return ret;
 }
@@ -168,7 +161,6 @@ static void __exit vgem_exit(void)
        struct faux_device *fdev = vgem_device->faux_dev;
 
        drm_dev_unregister(&vgem_device->drm);
-       devres_release_group(&fdev->dev, NULL);
        faux_device_destroy(fdev);
 }
 

base-commit: a50007089e078a1b7a826559a02277b1601ee189
-- 
2.52.0