diff options
| -rw-r--r-- | sys/dev/usb/usb_generic.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/sys/dev/usb/usb_generic.c b/sys/dev/usb/usb_generic.c index 9aadd53..714ee6f 100644 --- a/sys/dev/usb/usb_generic.c +++ b/sys/dev/usb/usb_generic.c @@ -1399,6 +1399,7 @@ ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) } u; struct usb_endpoint *ep; struct usb_endpoint_descriptor *ed; + struct usb_xfer *xfer; int error = 0; uint8_t iface_index; uint8_t isread; @@ -1425,11 +1426,11 @@ ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) case USB_FS_START: error = ugen_fs_copy_in(f, u.pstart->ep_index); - if (error) { + if (error) break; - } mtx_lock(f->priv_mtx); - usbd_transfer_start(f->fs_xfer[u.pstart->ep_index]); + xfer = f->fs_xfer[u.pstart->ep_index]; + usbd_transfer_start(xfer); mtx_unlock(f->priv_mtx); break; @@ -1439,7 +1440,19 @@ ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags) break; } mtx_lock(f->priv_mtx); - usbd_transfer_stop(f->fs_xfer[u.pstop->ep_index]); + xfer = f->fs_xfer[u.pstart->ep_index]; + if (usbd_transfer_pending(xfer)) { + usbd_transfer_stop(xfer); + /* + * Check if the USB transfer was stopped + * before it was even started. Else a cancel + * callback will be pending. + */ + if (!xfer->flags_int.transferring) { + ugen_fs_set_complete(xfer->priv_sc, + USB_P2U(xfer->priv_fifo)); + } + } mtx_unlock(f->priv_mtx); break; |
