diff options
Diffstat (limited to 'drivers/usb/storage/uas.c')
| -rw-r--r-- | drivers/usb/storage/uas.c | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 36ef82a34131..0ee5a05c0a7b 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -18,6 +18,7 @@ #include <linux/usb/uas.h> #include <scsi/scsi.h> +#include <scsi/scsi_eh.h> #include <scsi/scsi_dbg.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> @@ -818,10 +819,7 @@ static int uas_eh_bus_reset_handler(struct scsi_cmnd *cmnd) usb_kill_anchored_urbs(&devinfo->sense_urbs); usb_kill_anchored_urbs(&devinfo->data_urbs); uas_zap_dead(devinfo); - uas_free_streams(devinfo); err = usb_reset_device(udev); - if (!err) - uas_configure_endpoints(devinfo); devinfo->resetting = 0; usb_unlock_device(udev); @@ -1055,13 +1053,41 @@ set_alt0: static int uas_pre_reset(struct usb_interface *intf) { -/* XXX: Need to return 1 if it's not our device in error handling */ + struct Scsi_Host *shost = usb_get_intfdata(intf); + struct uas_dev_info *devinfo = (void *)shost->hostdata[0]; + unsigned long flags; + + /* Block new requests */ + spin_lock_irqsave(shost->host_lock, flags); + scsi_block_requests(shost); + spin_unlock_irqrestore(shost->host_lock, flags); + + /* Wait for any pending requests to complete */ + flush_work(&devinfo->work); + if (usb_wait_anchor_empty_timeout(&devinfo->sense_urbs, 5000) == 0) { + shost_printk(KERN_ERR, shost, "%s: timed out\n", __func__); + return 1; + } + + uas_free_streams(devinfo); + return 0; } static int uas_post_reset(struct usb_interface *intf) { -/* XXX: Need to return 1 if it's not our device in error handling */ + struct Scsi_Host *shost = usb_get_intfdata(intf); + struct uas_dev_info *devinfo = (void *)shost->hostdata[0]; + unsigned long flags; + + uas_configure_endpoints(devinfo); + + spin_lock_irqsave(shost->host_lock, flags); + scsi_report_bus_reset(shost, 0); + spin_unlock_irqrestore(shost->host_lock, flags); + + scsi_unblock_requests(shost); + return 0; } |