diff options
Diffstat (limited to 'drivers/usb/gadget/function/uvc_queue.c')
| -rw-r--r-- | drivers/usb/gadget/function/uvc_queue.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c index 21d80322cb61..586e5524c171 100644 --- a/drivers/usb/gadget/function/uvc_queue.c +++ b/drivers/usb/gadget/function/uvc_queue.c @@ -182,7 +182,15 @@ int uvcg_alloc_buffers(struct uvc_video_queue *queue, { int ret; +retry: ret = vb2_reqbufs(&queue->queue, rb); + if (ret < 0 && queue->use_sg) { + uvc_trace(UVC_TRACE_IOCTL, + "failed to alloc buffer with sg enabled, try non-sg mode\n"); + queue->use_sg = 0; + queue->queue.mem_ops = &vb2_vmalloc_memops; + goto retry; + } return ret ? ret : rb->count; } |