diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2012-09-25 10:47:04 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-25 15:32:23 -0700 |
| commit | a0e39e346822d115b2446a7c0032d799c48ac1a5 (patch) | |
| tree | 2b6c36977fe8be92dfadce4f7e3d1380022e3d22 /drivers/usb | |
| parent | 5ed338778f917a035f0f0a52327fc4f72e36f7a1 (diff) | |
USB: uas: keep track of command urbs
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/storage/uas.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 638cd64f961..ab66365adb9 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -41,6 +41,7 @@ struct sense_iu_old { struct uas_dev_info { struct usb_interface *intf; struct usb_device *udev; + struct usb_anchor cmd_urbs; struct usb_anchor sense_urbs; struct usb_anchor data_urbs; int qdepth, resetting; @@ -431,6 +432,7 @@ static int uas_submit_task_urb(struct scsi_cmnd *cmnd, gfp_t gfp, err = usb_submit_urb(urb, gfp); if (err) goto err; + usb_anchor_urb(urb, &devinfo->cmd_urbs); return 0; @@ -521,18 +523,22 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd, if (cmdinfo->state & ALLOC_CMD_URB) { cmdinfo->cmd_urb = uas_alloc_cmd_urb(devinfo, gfp, cmnd, - cmdinfo->stream); + cmdinfo->stream); if (!cmdinfo->cmd_urb) return SCSI_MLQUEUE_DEVICE_BUSY; cmdinfo->state &= ~ALLOC_CMD_URB; } if (cmdinfo->state & SUBMIT_CMD_URB) { + usb_get_urb(cmdinfo->cmd_urb); if (usb_submit_urb(cmdinfo->cmd_urb, gfp)) { scmd_printk(KERN_INFO, cmnd, "cmd urb submission failure\n"); return SCSI_MLQUEUE_DEVICE_BUSY; } + usb_anchor_urb(cmdinfo->cmd_urb, &devinfo->cmd_urbs); + usb_put_urb(cmdinfo->cmd_urb); + cmdinfo->cmd_urb = NULL; cmdinfo->state &= ~SUBMIT_CMD_URB; cmdinfo->state |= COMMAND_INFLIGHT; } @@ -670,6 +676,7 @@ static int uas_eh_bus_reset_handler(struct scsi_cmnd *cmnd) int err; devinfo->resetting = 1; + usb_kill_anchored_urbs(&devinfo->cmd_urbs); usb_kill_anchored_urbs(&devinfo->sense_urbs); usb_kill_anchored_urbs(&devinfo->data_urbs); err = usb_reset_device(udev); @@ -868,6 +875,7 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) devinfo->intf = intf; devinfo->udev = udev; devinfo->resetting = 0; + init_usb_anchor(&devinfo->cmd_urbs); init_usb_anchor(&devinfo->sense_urbs); init_usb_anchor(&devinfo->data_urbs); uas_configure_endpoints(devinfo); @@ -913,6 +921,7 @@ static void uas_disconnect(struct usb_interface *intf) struct uas_dev_info *devinfo = (void *)shost->hostdata[0]; scsi_remove_host(shost); + usb_kill_anchored_urbs(&devinfo->cmd_urbs); usb_kill_anchored_urbs(&devinfo->sense_urbs); usb_kill_anchored_urbs(&devinfo->data_urbs); uas_free_streams(devinfo); |