[SCSI] lpfc 8.1.7 : Short bug fixes

Short bug fixes:
 - Fix iocbq list corruption due to missing list_del's in ct handling
 - Missing unlock in lpfc_sli_next_iotag()
 - Fix initialization of can_queue value
 - Differentiate sysfs mailbox errors with different codes.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 4ccce1474f2d..76f8bd53e230 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -884,7 +884,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
                     phba->sysfs_mbox.mbox   == NULL ) {
                         sysfs_mbox_idle(phba);
                         spin_unlock_irq(host->host_lock);
-                        return -EINVAL;
+                        return -EAGAIN;
                 }
         }
 
@@ -1008,7 +1008,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
                 if (rc != MBX_SUCCESS) {
                         sysfs_mbox_idle(phba);
                         spin_unlock_irq(host->host_lock);
-                        return -ENODEV;
+                        return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
                 }
                 phba->sysfs_mbox.state = SMBOX_READING;
         }
@@ -1017,7 +1017,7 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
                 printk(KERN_WARNING  "mbox_read: Bad State\n");
                 sysfs_mbox_idle(phba);
                 spin_unlock_irq(host->host_lock);
-                return -EINVAL;
+                return -EAGAIN;
         }
 
         memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);