diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index fc709bc59b1a..314352683447 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -432,11 +432,28 @@ static void drm_fb_helper_damage_work(struct work_struct *work) if (helper->buffer) { ret = drm_fb_helper_damage_blit(helper, &clip_copy); if (drm_WARN_ONCE(dev, ret, "Damage blitter failed: ret=%d\n", ret)) - return; + goto err; + } + + if (helper->fb->funcs->dirty) { + ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, &clip_copy, 1); + if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret)) + goto err; } - if (helper->fb->funcs->dirty) - helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, &clip_copy, 1); + return; + +err: + /* + * Restore damage clip rectangle on errors. The next run + * of the damage worker will perform the update. + */ + spin_lock_irqsave(&helper->damage_lock, flags); + clip->x1 = min_t(u32, clip->x1, clip_copy.x1); + clip->y1 = min_t(u32, clip->y1, clip_copy.y1); + clip->x2 = max_t(u32, clip->x2, clip_copy.x2); + clip->y2 = max_t(u32, clip->y2, clip_copy.y2); + spin_unlock_irqrestore(&helper->damage_lock, flags); } /** |