diff options
| -rw-r--r-- | shared-core/drm_drawable.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/shared-core/drm_drawable.c b/shared-core/drm_drawable.c index ca6eb81c..511f3eae 100644 --- a/shared-core/drm_drawable.c +++ b/shared-core/drm_drawable.c @@ -166,6 +166,7 @@ int drm_rmdraw(DRM_IOCTL_ARGS) spin_unlock_irqrestore(&dev->drw_lock, irqflags); + DRM_DEBUG("%d\n", draw.handle); return 0; } @@ -209,30 +210,42 @@ int drm_update_drawable_info(DRM_IOCTL_ARGS) { switch (update.type) { case DRM_DRAWABLE_CLIPRECTS: - new_data = drm_alloc(update.num * sizeof(drm_clip_rect_t), - DRM_MEM_BUFS); + if (update.num != info->num_rects) { + new_data = drm_alloc(update.num * + sizeof(drm_clip_rect_t), + DRM_MEM_BUFS); - if (!new_data) { - DRM_ERROR("Failed to allocate cliprect memory\n"); - spin_unlock_irqrestore(&dev->drw_lock, irqflags); - return DRM_ERR(ENOMEM); + if (!new_data) { + DRM_ERROR("Can't allocate cliprect memory\n"); + spin_unlock_irqrestore(&dev->drw_lock, irqflags); + return DRM_ERR(ENOMEM); + } + + info->rects = new_data; } - if (DRM_COPY_FROM_USER(new_data, + if (DRM_COPY_FROM_USER(info->rects, (drm_clip_rect_t __user *) (unsigned long)update.data, update.num * sizeof(drm_clip_rect_t))) { - DRM_ERROR("Failed to copy cliprects from userspace\n"); + DRM_ERROR("Can't copy cliprects from userspace\n"); spin_unlock_irqrestore(&dev->drw_lock, irqflags); return DRM_ERR(EFAULT); } - drm_free(info->rects, info->num_rects * sizeof(drm_clip_rect_t), - DRM_MEM_BUFS); + if (update.num != info->num_rects) { + drm_free(info->rects, info->num_rects * + sizeof(drm_clip_rect_t), DRM_MEM_BUFS); + info->num_rects = update.num; + } - info->rects = new_data; - info->num_rects = update.num; + DRM_DEBUG("Updated %d cliprects for drawable %d\n", + info->num_rects, id); break; + default: + DRM_ERROR("Invalid update type %d\n", update.type); + spin_unlock_irqrestore(&dev->drw_lock, irqflags); + return DRM_ERR(EINVAL); } spin_unlock_irqrestore(&dev->drw_lock, irqflags); |