Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8d61117a authored by Linyu Yuan's avatar Linyu Yuan
Browse files

f_fs: fix scheduling while atomic issue of ffs_epfile_io() 



move wait_for_completion() outside of spinlock.

Change-Id: Ib4cb7058aa96a55be40e757434ac64327264f104
Signed-off-by: default avatarLinyu Yuan <linyyuan@codeaurora.org>
parent 8543fd31

drivers/usb/gadget/function/f_fs.c

+3 −1
Original line number Diff line number Diff line
@@ -1185,11 +1185,13 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) 
			interrupted = true;

			if (ep->ep) {

				usb_ep_dequeue(ep->ep, req);

				spin_unlock_irq(&epfile->ffs->eps_lock);

				wait_for_completion(&done);

				interrupted = ep->status < 0;

			}

			} else {

				spin_unlock_irq(&epfile->ffs->eps_lock);

			}

		}



		ffs_log("%s:ep status %d for req %pK", epfile->name, ep->status,

				req);