From: Daniel Vetter Date: Thu, 4 Oct 2018 20:24:37 +0000 (+0200) Subject: drm/sti: Use drm_atomic_helper_shutdown X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a2b50babc74394c99638a37a3d48adeb03ddc248;p=linux.git drm/sti: Use drm_atomic_helper_shutdown drm_plane_helper_disable is a non-atomic drivers only function, and will blow up (since no one passes the locking context it needs). Atomic drivers which want to quiescent their hw on unload should use drm_atomic_helper_shutdown() instead. The sti cleanup code seems supremely confused: - In the load error path it calls drm_mode_config_cleanup before it stops various kms services like poll worker or fbdev emulation. That's going to oops. - The actual unload code doesn't even bother with the cleanup and just leaks. Try to fix this while at it. Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter Cc: Benjamin Gaignard Cc: Vincent Abriou Link: https://patchwork.freedesktop.org/patch/msgid/20181004202446.22905-13-daniel.vetter@ffwll.ch --- diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c index 57b870e1e6964..bc908453ffb35 100644 --- a/drivers/gpu/drm/sti/sti_cursor.c +++ b/drivers/gpu/drm/sti/sti_cursor.c @@ -332,7 +332,6 @@ static void sti_cursor_destroy(struct drm_plane *drm_plane) { DRM_DEBUG_DRIVER("\n"); - drm_plane_helper_disable(drm_plane, NULL); drm_plane_cleanup(drm_plane); } diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c index 6dced8abcf163..ac54e0f9caea3 100644 --- a/drivers/gpu/drm/sti/sti_drv.c +++ b/drivers/gpu/drm/sti/sti_drv.c @@ -206,6 +206,8 @@ static void sti_cleanup(struct drm_device *ddev) struct sti_private *private = ddev->dev_private; drm_kms_helper_poll_fini(ddev); + drm_atomic_helper_shutdown(ddev); + drm_mode_config_cleanup(ddev); component_unbind_all(ddev->dev, ddev); kfree(private); ddev->dev_private = NULL; @@ -230,7 +232,7 @@ static int sti_bind(struct device *dev) ret = drm_dev_register(ddev, 0); if (ret) - goto err_register; + goto err_cleanup; drm_mode_config_reset(ddev); @@ -238,8 +240,6 @@ static int sti_bind(struct device *dev) return 0; -err_register: - drm_mode_config_cleanup(ddev); err_cleanup: sti_cleanup(ddev); err_drm_dev_put: diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c index c32de6cbf0616..3c19614d3f75e 100644 --- a/drivers/gpu/drm/sti/sti_gdp.c +++ b/drivers/gpu/drm/sti/sti_gdp.c @@ -883,7 +883,6 @@ static void sti_gdp_destroy(struct drm_plane *drm_plane) { DRM_DEBUG_DRIVER("\n"); - drm_plane_helper_disable(drm_plane, NULL); drm_plane_cleanup(drm_plane); } diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c index 03ac3b4a44692..23565f52dd719 100644 --- a/drivers/gpu/drm/sti/sti_hqvdp.c +++ b/drivers/gpu/drm/sti/sti_hqvdp.c @@ -1260,7 +1260,6 @@ static void sti_hqvdp_destroy(struct drm_plane *drm_plane) { DRM_DEBUG_DRIVER("\n"); - drm_plane_helper_disable(drm_plane, NULL); drm_plane_cleanup(drm_plane); }