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drm/qxl: properly pin/unpin shadow

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Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20210204145712.1531203-7-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2021-02-04 15:57:07 +01:00
parent 4ca77c5135
commit 76aefa4d27
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/qxl/qxl_display.c
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@ -802,12 +802,14 @@ static int qxl_plane_prepare_fb(struct drm_plane *plane,
}
if (user_bo->shadow != qdev->dumb_shadow_bo) {
if (user_bo->shadow) {
qxl_bo_unpin(user_bo->shadow);
drm_gem_object_put
(&user_bo->shadow->tbo.base);
user_bo->shadow = NULL;
}
drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
user_bo->shadow = qdev->dumb_shadow_bo;
qxl_bo_pin(user_bo->shadow);
}
}
@ -833,6 +835,7 @@ static void qxl_plane_cleanup_fb(struct drm_plane *plane,
qxl_bo_unpin(user_bo);
if (old_state->fb != plane->state->fb && user_bo->shadow) {
qxl_bo_unpin(user_bo->shadow);
drm_gem_object_put(&user_bo->shadow->tbo.base);
user_bo->shadow = NULL;
}
@ -1230,6 +1233,7 @@ int qxl_modeset_init(struct qxl_device *qdev)
void qxl_modeset_fini(struct qxl_device *qdev)
{
if (qdev->dumb_shadow_bo) {
qxl_bo_unpin(qdev->dumb_shadow_bo);
drm_gem_object_put(&qdev->dumb_shadow_bo->tbo.base);
qdev->dumb_shadow_bo = NULL;
}