1 files changed, 22 insertions, 10 deletions

diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index dfca0ef139f..1c27a5a06b4 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -109,7 +109,7 @@ css_subchannel_release(struct device *dev)
 	}
 }
 
-int css_sch_device_register(struct subchannel *sch)
+static int css_sch_device_register(struct subchannel *sch)
 {
 	int ret;
 
@@ -184,8 +184,8 @@ static int css_register_subchannel(struct subchannel *sch)
 	/* make it known to the system */
 	ret = css_sch_device_register(sch);
 	if (ret) {
-		printk (KERN_WARNING "%s: could not register %s\n",
-			__func__, sch->dev.bus_id);
+		CIO_MSG_EVENT(0, "Could not register sch 0.%x.%04x: %d\n",
+			      sch->schid.ssid, sch->schid.sch_no, ret);
 		return ret;
 	}
 	return ret;
@@ -371,15 +371,12 @@ static int __init slow_subchannel_init(void)
 	spin_lock_init(&slow_subchannel_lock);
 	slow_subchannel_set = idset_sch_new();
 	if (!slow_subchannel_set) {
-		printk(KERN_WARNING "cio: could not allocate slow subchannel "
-		       "set\n");
+		CIO_MSG_EVENT(0, "could not allocate slow subchannel set\n");
 		return -ENOMEM;
 	}
 	return 0;
 }
 
-subsys_initcall(slow_subchannel_init);
-
 static void css_slow_path_func(struct work_struct *unused)
 {
 	struct subchannel_id schid;
@@ -425,8 +422,8 @@ static int reprobe_subchannel(struct subchannel_id schid, void *data)
 	struct subchannel *sch;
 	int ret;
 
-	CIO_DEBUG(KERN_INFO, 6, "cio: reprobe 0.%x.%04x\n",
-		  schid.ssid, schid.sch_no);
+	CIO_MSG_EVENT(6, "cio: reprobe 0.%x.%04x\n",
+		      schid.ssid, schid.sch_no);
 	if (need_reprobe)
 		return -EAGAIN;
 
@@ -642,9 +639,20 @@ init_channel_subsystem (void)
 {
 	int ret, i;
 
-	if (chsc_determine_css_characteristics() == 0)
+	ret = chsc_determine_css_characteristics();
+	if (ret == -ENOMEM)
+		goto out; /* No need to continue. */
+	if (ret == 0)
 		css_characteristics_avail = 1;
 
+	ret = chsc_alloc_sei_area();
+	if (ret)
+		goto out;
+
+	ret = slow_subchannel_init();
+	if (ret)
+		goto out;
+
 	if ((ret = bus_register(&css_bus_type)))
 		goto out;
 
@@ -710,6 +718,10 @@ out_unregister:
 out_bus:
 	bus_unregister(&css_bus_type);
 out:
+	chsc_free_sei_area();
+	kfree(slow_subchannel_set);
+	printk(KERN_WARNING"cio: failed to initialize css driver (%d)!\n",
+	       ret);
 	return ret;
 }