6 files changed, 26 insertions, 10 deletions

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 92be75d99a56..f4183d660258 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -232,7 +232,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
                 return 0;
 
         mask = 0x80 >> j;
-        spin_lock(&sch->lock);
+        spin_lock_irq(&sch->lock);
 
         stsch(sch->schid, &schib);
         if (!schib.pmcw.dnv)
@@ -281,10 +281,10 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
         if (sch->driver && sch->driver->verify)
                 sch->driver->verify(&sch->dev);
 out_unlock:
-        spin_unlock(&sch->lock);
+        spin_unlock_irq(&sch->lock);
         return 0;
 out_unreg:
-        spin_unlock(&sch->lock);
+        spin_unlock_irq(&sch->lock);
         sch->lpm = 0;
         if (css_enqueue_subchannel_slow(sch->schid)) {
                 css_clear_subchannel_slow_list();
@@ -652,7 +652,7 @@ __chp_add(struct subchannel_id schid, void *data)
         if (!sch)
                 /* Check if the subchannel is now available. */
                 return __chp_add_new_sch(schid);
-        spin_lock(&sch->lock);
+        spin_lock_irq(&sch->lock);
         for (i=0; i<8; i++)
                 if (sch->schib.pmcw.chpid[i] == chp->id) {
                         if (stsch(sch->schid, &sch->schib) != 0) {
@@ -674,7 +674,7 @@ __chp_add(struct subchannel_id schid, void *data)
         if (sch->driver && sch->driver->verify)
                 sch->driver->verify(&sch->dev);
 
-        spin_unlock(&sch->lock);
+        spin_unlock_irq(&sch->lock);
         put_device(&sch->dev);
         return 0;
 }
@@ -1115,6 +1115,9 @@ chsc_enable_facility(int operation_code)
                 goto out;
         }
         switch (sda_area->response.code) {
+        case 0x0001: /* everything ok */
+                ret = 0;
+                break;
         case 0x0003: /* invalid request block */
         case 0x0007:
                 ret = -EINVAL;
@@ -1123,6 +1126,8 @@ chsc_enable_facility(int operation_code)
         case 0x0101: /* facility not provided */
                 ret = -EOPNOTSUPP;
                 break;
+        default: /* something went wrong */
+                ret = -EIO;
         }
  out:
         free_page((unsigned long)sda_area);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 1bbf231f8aaf..3c77d65960db 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -409,6 +409,9 @@ __init_channel_subsystem(struct subchannel_id schid, void *data)
                 /* -ENXIO: no more subchannels. */
                 case -ENXIO:
                         return ret;
+                /* -EIO: this subchannel set not supported. */
+                case -EIO:
+                        return ret;
                 default:
                         return 0;
                 }
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 062fb100d94c..afc4e88551ad 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -359,7 +359,7 @@ ccw_device_set_online(struct ccw_device *cdev)
         else 
                 pr_debug("ccw_device_offline returned %d, device %s\n",
                          ret, cdev->dev.bus_id);
-        return (ret = 0) ? -ENODEV : ret;
+        return (ret == 0) ? -ENODEV : ret;
 }
 
 static ssize_t
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index d2a5b04d7cba..85b1020a1fcc 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -405,7 +405,7 @@ __ccw_device_disband_start(struct ccw_device *cdev)
                 cdev->private->iretry = 5;
                 cdev->private->imask >>= 1;
         }
-        ccw_device_verify_done(cdev, (sch->lpm != 0) ? 0 : -ENODEV);
+        ccw_device_disband_done(cdev, (sch->lpm != 0) ? 0 : -ENODEV);
 }
 
 /*
diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c
index dad4dd9887c9..6c762b43f921 100644
--- a/drivers/s390/cio/device_status.c
+++ b/drivers/s390/cio/device_status.c
@@ -317,7 +317,6 @@ ccw_device_do_sense(struct ccw_device *cdev, struct irb *irb)
         /*
          * We have ending status but no sense information. Do a basic sense.
          */
-        sch = to_subchannel(cdev->dev.parent);
         sch->sense_ccw.cmd_code = CCW_CMD_BASIC_SENSE;
         sch->sense_ccw.cda = (__u32) __pa(cdev->private->irb.ecw);
         sch->sense_ccw.count = SENSE_MAX_COUNT;
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index 45ce032772f4..9ed37dc9a1b0 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -165,8 +165,13 @@ qdio_do_eqbs(struct qdio_q *q, unsigned char *state,
         q_no = q->q_no;
         if(!q->is_input_q)
                 q_no += irq->no_input_qs;
+again:
         ccq = do_eqbs(irq->sch_token, state, q_no, start, cnt);
         rc = qdio_check_ccq(q, ccq);
+        if (rc == 1) {
+                QDIO_DBF_TEXT5(1,trace,"eqAGAIN");
+                goto again;
+        }
         if (rc < 0) {
                 QDIO_DBF_TEXT2(1,trace,"eqberr");
                 sprintf(dbf_text,"%2x,%2x,%d,%d",tmp_cnt, *cnt, ccq, q_no);
@@ -195,8 +200,13 @@ qdio_do_sqbs(struct qdio_q *q, unsigned char state,
         q_no = q->q_no;
         if(!q->is_input_q)
                 q_no += irq->no_input_qs;
+again:
         ccq = do_sqbs(irq->sch_token, state, q_no, start, cnt);
         rc = qdio_check_ccq(q, ccq);
+        if (rc == 1) {
+                QDIO_DBF_TEXT5(1,trace,"sqAGAIN");
+                goto again;
+        }
         if (rc < 0) {
                 QDIO_DBF_TEXT3(1,trace,"sqberr");
                 sprintf(dbf_text,"%2x,%2x,%d,%d",tmp_cnt,*cnt,ccq,q_no);
@@ -1187,8 +1197,7 @@ tiqdio_is_inbound_q_done(struct qdio_q *q)
 
         if (!no_used)
                 return 1;
-
-        if (!q->siga_sync)
+        if (!q->siga_sync && !irq->is_qebsm)
                 /* we'll check for more primed buffers in qeth_stop_polling */
                 return 0;
         if (irq->is_qebsm) {