diff options
Diffstat (limited to 'drivers/usb/gadget/function/f_fs.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_fs.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 45b8c8b338df..adc6d52efa46 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -924,7 +924,8 @@ static ssize_t ffs_epfile_write_iter(struct kiocb *kiocb, struct iov_iter *from) kiocb->private = p; - kiocb_set_cancel_fn(kiocb, ffs_aio_cancel); + if (p->aio) + kiocb_set_cancel_fn(kiocb, ffs_aio_cancel); res = ffs_epfile_io(kiocb->ki_filp, p); if (res == -EIOCBQUEUED) @@ -968,7 +969,8 @@ static ssize_t ffs_epfile_read_iter(struct kiocb *kiocb, struct iov_iter *to) kiocb->private = p; - kiocb_set_cancel_fn(kiocb, ffs_aio_cancel); + if (p->aio) + kiocb_set_cancel_fn(kiocb, ffs_aio_cancel); res = ffs_epfile_io(kiocb->ki_filp, p); if (res == -EIOCBQUEUED) @@ -2895,11 +2897,17 @@ static int ffs_func_bind(struct usb_configuration *c, struct usb_function *f) { struct f_fs_opts *ffs_opts = ffs_do_functionfs_bind(f, c); + struct ffs_function *func = ffs_func_from_usb(f); + int ret; if (IS_ERR(ffs_opts)) return PTR_ERR(ffs_opts); - return _ffs_func_bind(c, f); + ret = _ffs_func_bind(c, f); + if (ret && !--ffs_opts->refcnt) + functionfs_unbind(func->ffs); + + return ret; } |