Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 38 deletions

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 4ca5adce91..34b2567b8d 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -363,10 +363,8 @@ int ccw_device_set_online(struct ccw_device *cdev)
 
 	spin_lock_irq(cdev->ccwlock);
 	ret = ccw_device_online(cdev);
-	spin_unlock_irq(cdev->ccwlock);
-	if (ret == 0)
-		wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
-	else {
+	if (ret) {
+		spin_unlock_irq(cdev->ccwlock);
 		CIO_MSG_EVENT(0, "ccw_device_online returned %d, "
 			      "device 0.%x.%04x\n",
 			      ret, cdev->private->dev_id.ssid,
@@ -375,7 +373,12 @@ int ccw_device_set_online(struct ccw_device *cdev)
 		put_device(&cdev->dev);
 		return ret;
 	}
-	spin_lock_irq(cdev->ccwlock);
+	/* Wait until a final state is reached */
+	while (!dev_fsm_final_state(cdev)) {
+		spin_unlock_irq(cdev->ccwlock);
+		wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
+		spin_lock_irq(cdev->ccwlock);
+	}
 	/* Check if online processing was successful */
 	if ((cdev->private->state != DEV_STATE_ONLINE) &&
 	    (cdev->private->state != DEV_STATE_W4SENSE)) {
@@ -748,7 +751,7 @@ static int io_subchannel_initialize_dev(struct subchannel *sch,
 	mutex_init(&cdev->reg_mutex);
 
 	atomic_set(&priv->onoff, 0);
-	cdev->ccwlock = sch->lock;
+	cdev->ccwlock = &sch->lock;
 	cdev->dev.parent = &sch->dev;
 	cdev->dev.release = ccw_device_release;
 	cdev->dev.bus = &ccw_bus_type;
@@ -764,9 +767,9 @@ static int io_subchannel_initialize_dev(struct subchannel *sch,
 		goto out_put;
 	}
 	priv->flags.initialized = 1;
-	spin_lock_irq(sch->lock);
+	spin_lock_irq(&sch->lock);
 	sch_set_cdev(sch, cdev);
-	spin_unlock_irq(sch->lock);
+	spin_unlock_irq(&sch->lock);
 	return 0;
 
 out_put:
@@ -851,9 +854,9 @@ static void io_subchannel_register(struct ccw_device *cdev)
 		CIO_MSG_EVENT(0, "Could not register ccw dev 0.%x.%04x: %d\n",
 			      cdev->private->dev_id.ssid,
 			      cdev->private->dev_id.devno, ret);
-		spin_lock_irqsave(sch->lock, flags);
+		spin_lock_irqsave(&sch->lock, flags);
 		sch_set_cdev(sch, NULL);
-		spin_unlock_irqrestore(sch->lock, flags);
+		spin_unlock_irqrestore(&sch->lock, flags);
 		mutex_unlock(&cdev->reg_mutex);
 		/* Release initial device reference. */
 		put_device(&cdev->dev);
@@ -904,9 +907,9 @@ static void io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
 	atomic_inc(&ccw_device_init_count);
 
 	/* Start async. device sensing. */
-	spin_lock_irq(sch->lock);
+	spin_lock_irq(&sch->lock);
 	ccw_device_recognition(cdev);
-	spin_unlock_irq(sch->lock);
+	spin_unlock_irq(&sch->lock);
 }
 
 static int ccw_device_move_to_sch(struct ccw_device *cdev,
@@ -921,12 +924,12 @@ static int ccw_device_move_to_sch(struct ccw_device *cdev,
 		return -ENODEV;
 
 	if (!sch_is_pseudo_sch(old_sch)) {
-		spin_lock_irq(old_sch->lock);
+		spin_lock_irq(&old_sch->lock);
 		old_enabled = old_sch->schib.pmcw.ena;
 		rc = 0;
 		if (old_enabled)
 			rc = cio_disable_subchannel(old_sch);
-		spin_unlock_irq(old_sch->lock);
+		spin_unlock_irq(&old_sch->lock);
 		if (rc == -EBUSY) {
 			/* Release child reference for new parent. */
 			put_device(&sch->dev);
@@ -944,9 +947,9 @@ static int ccw_device_move_to_sch(struct ccw_device *cdev,
 			      sch->schib.pmcw.dev, rc);
 		if (old_enabled) {
 			/* Try to re-enable the old subchannel. */
-			spin_lock_irq(old_sch->lock);
+			spin_lock_irq(&old_sch->lock);
 			cio_enable_subchannel(old_sch, (u32)virt_to_phys(old_sch));
-			spin_unlock_irq(old_sch->lock);
+			spin_unlock_irq(&old_sch->lock);
 		}
 		/* Release child reference for new parent. */
 		put_device(&sch->dev);
@@ -954,19 +957,19 @@ static int ccw_device_move_to_sch(struct ccw_device *cdev,
 	}
 	/* Clean up old subchannel. */
 	if (!sch_is_pseudo_sch(old_sch)) {
-		spin_lock_irq(old_sch->lock);
+		spin_lock_irq(&old_sch->lock);
 		sch_set_cdev(old_sch, NULL);
-		spin_unlock_irq(old_sch->lock);
+		spin_unlock_irq(&old_sch->lock);
 		css_schedule_eval(old_sch->schid);
 	}
 	/* Release child reference for old parent. */
 	put_device(&old_sch->dev);
 	/* Initialize new subchannel. */
-	spin_lock_irq(sch->lock);
-	cdev->ccwlock = sch->lock;
+	spin_lock_irq(&sch->lock);
+	cdev->ccwlock = &sch->lock;
 	if (!sch_is_pseudo_sch(sch))
 		sch_set_cdev(sch, cdev);
-	spin_unlock_irq(sch->lock);
+	spin_unlock_irq(&sch->lock);
 	if (!sch_is_pseudo_sch(sch))
 		css_update_ssd_info(sch);
 	return 0;
@@ -1077,9 +1080,9 @@ static int io_subchannel_probe(struct subchannel *sch)
 	return 0;
 
 out_schedule:
-	spin_lock_irq(sch->lock);
+	spin_lock_irq(&sch->lock);
 	css_sched_sch_todo(sch, SCH_TODO_UNREG);
-	spin_unlock_irq(sch->lock);
+	spin_unlock_irq(&sch->lock);
 	return 0;
 }
 
@@ -1093,10 +1096,10 @@ static void io_subchannel_remove(struct subchannel *sch)
 		goto out_free;
 
 	ccw_device_unregister(cdev);
-	spin_lock_irq(sch->lock);
+	spin_lock_irq(&sch->lock);
 	sch_set_cdev(sch, NULL);
 	set_io_private(sch, NULL);
-	spin_unlock_irq(sch->lock);
+	spin_unlock_irq(&sch->lock);
 out_free:
 	dma_free_coherent(&sch->dev, sizeof(*io_priv->dma_area),
 			  io_priv->dma_area, io_priv->dma_area_dma);
@@ -1203,7 +1206,7 @@ static void io_subchannel_quiesce(struct subchannel *sch)
 	struct ccw_device *cdev;
 	int ret;
 
-	spin_lock_irq(sch->lock);
+	spin_lock_irq(&sch->lock);
 	cdev = sch_get_cdev(sch);
 	if (cio_is_console(sch->schid))
 		goto out_unlock;
@@ -1220,15 +1223,15 @@ static void io_subchannel_quiesce(struct subchannel *sch)
 		ret = ccw_device_cancel_halt_clear(cdev);
 		if (ret == -EBUSY) {
 			ccw_device_set_timeout(cdev, HZ/10);
-			spin_unlock_irq(sch->lock);
+			spin_unlock_irq(&sch->lock);
 			wait_event(cdev->private->wait_q,
 				   cdev->private->state != DEV_STATE_QUIESCE);
-			spin_lock_irq(sch->lock);
+			spin_lock_irq(&sch->lock);
 		}
 		ret = cio_disable_subchannel(sch);
 	}
 out_unlock:
-	spin_unlock_irq(sch->lock);
+	spin_unlock_irq(&sch->lock);
 }
 
 static void io_subchannel_shutdown(struct subchannel *sch)
@@ -1439,7 +1442,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 	enum io_sch_action action;
 	int rc = -EAGAIN;
 
-	spin_lock_irqsave(sch->lock, flags);
+	spin_lock_irqsave(&sch->lock, flags);
 	if (!device_is_registered(&sch->dev))
 		goto out_unlock;
 	if (work_pending(&sch->todo_work))
@@ -1492,7 +1495,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 	default:
 		break;
 	}
-	spin_unlock_irqrestore(sch->lock, flags);
+	spin_unlock_irqrestore(&sch->lock, flags);
 	/* All other actions require process context. */
 	if (!process)
 		goto out;
@@ -1507,9 +1510,9 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 		break;
 	case IO_SCH_UNREG_CDEV:
 	case IO_SCH_UNREG_ATTACH:
-		spin_lock_irqsave(sch->lock, flags);
+		spin_lock_irqsave(&sch->lock, flags);
 		sch_set_cdev(sch, NULL);
-		spin_unlock_irqrestore(sch->lock, flags);
+		spin_unlock_irqrestore(&sch->lock, flags);
 		/* Unregister ccw device. */
 		ccw_device_unregister(cdev);
 		break;
@@ -1538,9 +1541,9 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 			put_device(&cdev->dev);
 			goto out;
 		}
-		spin_lock_irqsave(sch->lock, flags);
+		spin_lock_irqsave(&sch->lock, flags);
 		ccw_device_trigger_reprobe(cdev);
-		spin_unlock_irqrestore(sch->lock, flags);
+		spin_unlock_irqrestore(&sch->lock, flags);
 		/* Release reference from get_ccwdev_by_dev_id() */
 		put_device(&cdev->dev);
 		break;
@@ -1550,7 +1553,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
 	return 0;
 
 out_unlock:
-	spin_unlock_irqrestore(sch->lock, flags);
+	spin_unlock_irqrestore(&sch->lock, flags);
 out:
 	return rc;
 }
@@ -1846,9 +1849,9 @@ static void ccw_device_todo(struct work_struct *work)
 			css_schedule_eval(sch->schid);
 		fallthrough;
 	case CDEV_TODO_UNREG:
-		spin_lock_irq(sch->lock);
+		spin_lock_irq(&sch->lock);
 		sch_set_cdev(sch, NULL);
-		spin_unlock_irq(sch->lock);
+		spin_unlock_irq(&sch->lock);
 		ccw_device_unregister(cdev);
 		break;
 	default: