diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c index 3256693..4fcca8d 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c +++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c @@ -140,12 +140,15 @@ static int omap_gem_dmabuf_mmap(struct dma_buf *buffer, struct vm_area_struct *vma) { struct drm_gem_object *obj = buffer->priv; + struct drm_device *dev = obj->dev; int ret = 0; if (WARN_ON(!obj->filp)) return -EINVAL; + mutex_lock(&dev->struct_mutex); ret = drm_gem_mmap_obj(obj, omap_gem_mmap_size(obj), vma); + mutex_unlock(&dev->struct_mutex); if (ret < 0) return ret; |