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| author |   Emil Velikov <emil.velikov@collabora.com> | 2018-10-26 11:05:50 +0100 |
|---|---|---|
| committer |   Emil Velikov <emil.l.velikov@gmail.com> | 2018-10-29 11:13:40 +0000 |
| commit | 633873e6cb884f903468f81f2e8df8975877fadd (patch) | |
| tree | ae6a5e2c28c5134d370eca5535a19174ea553670 /drivers/gpu/drm/vkms | |
| parent | drm/i915/hdmi: Detect HDMI 2.0 monitors using multiple EDID capabilities (diff) | |
| download | linux-dev-633873e6cb884f903468f81f2e8df8975877fadd.tar.xz linux-dev-633873e6cb884f903468f81f2e8df8975877fadd.zip | |
drm/vkms: provide a parent device to drm_dev_init()
Earlier commit updated the vgem driver to improve the topology, by
passing a platform device as parent to drm_dev_init(). Shortly
afterwords we updated the core function to BUG() in order to catch any
buggy drivers passing NULL as parent.
While I missed the vkms driver (as the patch predates vkms by a few
months), the BUG caught the issue within couple of hours.
Swap the drm_dev_init <> platform_device_register_simple order, to
the driver back to life.
Fixes: f08877e79485 ("drm: BUG_ON if passing NULL parent to drm_dev_init")
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Deepak Sharma <deepak.sharma@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181026100550.625-1-emil.l.velikov@gmail.com
Diffstat (limited to 'drivers/gpu/drm/vkms')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_drv.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c index 07cfde1b4132..a3d57e0f5ee5 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -108,17 +108,18 @@ static int __init vkms_init(void) if (!vkms_device) return -ENOMEM; - ret = drm_dev_init(&vkms_device->drm, &vkms_driver, NULL); - if (ret) - goto out_free; - vkms_device->platform = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); if (IS_ERR(vkms_device->platform)) { ret = PTR_ERR(vkms_device->platform); - goto out_fini; + goto out_free; } + ret = drm_dev_init(&vkms_device->drm, &vkms_driver, + &vkms_device->platform->dev); + if (ret) + goto out_unregister; + vkms_device->drm.irq_enabled = true; ret = drm_vblank_init(&vkms_device->drm, 1); @@ -129,20 +130,20 @@ static int __init vkms_init(void) ret = vkms_modeset_init(vkms_device); if (ret) - goto out_unregister; + goto out_fini; ret = drm_dev_register(&vkms_device->drm, 0); if (ret) - goto out_unregister; + goto out_fini; return 0; -out_unregister: - platform_device_unregister(vkms_device->platform); - out_fini: drm_dev_fini(&vkms_device->drm); +out_unregister: + platform_device_unregister(vkms_device->platform); + out_free: kfree(vkms_device); return ret; |