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uas: task_mgmt: Kill the sense-urb if we fail to submit the cmd urb 

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Hans de Goede 2013-10-29 10:37:23 +01:00 committed by Sarah Sharp
parent 58d51444cd
commit 70cf0fba76
1 changed files with 13 additions and 11 deletions
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24
drivers/usb/storage/uas.c
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@ -550,39 +550,38 @@ err:
* daft to me.
*/
static int uas_submit_sense_urb(struct Scsi_Host *shost,
gfp_t gfp, unsigned int stream)
static struct urb *uas_submit_sense_urb(struct Scsi_Host *shost,
gfp_t gfp, unsigned int stream)
{
struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
struct urb *urb;
urb = uas_alloc_sense_urb(devinfo, gfp, shost, stream);
if (!urb)
return SCSI_MLQUEUE_DEVICE_BUSY;
return NULL;
usb_anchor_urb(urb, &devinfo->sense_urbs);
if (usb_submit_urb(urb, gfp)) {
usb_unanchor_urb(urb);
shost_printk(KERN_INFO, shost,
"sense urb submission failure\n");
usb_free_urb(urb);
return SCSI_MLQUEUE_DEVICE_BUSY;
return NULL;
}
return 0;
return urb;
}
static int uas_submit_urbs(struct scsi_cmnd *cmnd,
struct uas_dev_info *devinfo, gfp_t gfp)
{
struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
int err;
struct urb *urb;
WARN_ON_ONCE(!spin_is_locked(&devinfo->lock));
if (cmdinfo->state & SUBMIT_STATUS_URB) {
err = uas_submit_sense_urb(cmnd->device->host, gfp,
urb = uas_submit_sense_urb(cmnd->device->host, gfp,
cmdinfo->stream);
if (err) {
return err;
}
if (!urb)
return SCSI_MLQUEUE_DEVICE_BUSY;
cmdinfo->state &= ~SUBMIT_STATUS_URB;
}
@ -726,10 +725,12 @@ static int uas_eh_task_mgmt(struct scsi_cmnd *cmnd,
struct uas_dev_info *devinfo = (void *)shost->hostdata[0];
u16 tag = devinfo->qdepth;
unsigned long flags;
struct urb *sense_urb;
spin_lock_irqsave(&devinfo->lock, flags);
memset(&devinfo->response, 0, sizeof(devinfo->response));
if (uas_submit_sense_urb(shost, GFP_ATOMIC, tag)) {
sense_urb = uas_submit_sense_urb(shost, GFP_ATOMIC, tag);
if (!sense_urb) {
shost_printk(KERN_INFO, shost,
"%s: %s: submit sense urb failed\n",
__func__, fname);
@ -741,6 +742,7 @@ static int uas_eh_task_mgmt(struct scsi_cmnd *cmnd,
"%s: %s: submit task mgmt urb failed\n",
__func__, fname);
spin_unlock_irqrestore(&devinfo->lock, flags);
usb_kill_urb(sense_urb);
return FAILED;
}
spin_unlock_irqrestore(&devinfo->lock, flags);