diff options
| -rw-r--r-- | drivers/usb/storage/uas.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index b589b2e0e928..d8b7bc6ea141 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -242,6 +242,13 @@ static void uas_stat_cmplt(struct urb *urb) uas_sense_old(urb, cmnd); else uas_sense(urb, cmnd); + if (cmnd->result != 0) { + /* cancel data transfers on error */ + if (cmdinfo->state & DATA_IN_URB_INFLIGHT) + usb_unlink_urb(cmdinfo->data_in_urb); + if (cmdinfo->state & DATA_OUT_URB_INFLIGHT) + usb_unlink_urb(cmdinfo->data_out_urb); + } cmdinfo->state &= ~COMMAND_INFLIGHT; uas_try_complete(cmnd, __func__); break; @@ -272,7 +279,12 @@ static void uas_data_cmplt(struct urb *urb) cmdinfo->state &= ~DATA_OUT_URB_INFLIGHT; } BUG_ON(sdb == NULL); - sdb->resid = sdb->length - urb->actual_length; + if (urb->status) { + /* error: no data transfered */ + sdb->resid = sdb->length; + } else { + sdb->resid = sdb->length - urb->actual_length; + } uas_try_complete(cmnd, __func__); } |