1 files changed, 14 insertions, 0 deletions

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index c833481d32e3..aabd2388fcce 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -79,6 +79,14 @@ static int iucv_bus_match(struct device *dev, struct device_driver *drv)
         return 0;
 }
 
+enum iucv_pm_states {
+        IUCV_PM_INITIAL = 0,
+        IUCV_PM_FREEZING = 1,
+        IUCV_PM_THAWING = 2,
+        IUCV_PM_RESTORING = 3,
+};
+static enum iucv_pm_states iucv_pm_state;
+
 static int iucv_pm_prepare(struct device *);
 static void iucv_pm_complete(struct device *);
 static int iucv_pm_freeze(struct device *);
@@ -1875,6 +1883,7 @@ static int iucv_pm_freeze(struct device *dev)
 #ifdef CONFIG_PM_DEBUG
         printk(KERN_WARNING "iucv_pm_freeze\n");
 #endif
+        iucv_pm_state = IUCV_PM_FREEZING;
         for_each_cpu_mask_nr(cpu, iucv_irq_cpumask)
                 smp_call_function_single(cpu, iucv_block_cpu_almost, NULL, 1);
         if (dev->driver && dev->driver->pm && dev->driver->pm->freeze)
@@ -1899,6 +1908,7 @@ static int iucv_pm_thaw(struct device *dev)
 #ifdef CONFIG_PM_DEBUG
         printk(KERN_WARNING "iucv_pm_thaw\n");
 #endif
+        iucv_pm_state = IUCV_PM_THAWING;
         if (!iucv_path_table) {
                 rc = iucv_enable();
                 if (rc)
@@ -1933,6 +1943,10 @@ static int iucv_pm_restore(struct device *dev)
 #ifdef CONFIG_PM_DEBUG
         printk(KERN_WARNING "iucv_pm_restore %p\n", iucv_path_table);
 #endif
+        if ((iucv_pm_state != IUCV_PM_RESTORING) && iucv_path_table)
+                pr_warning("Suspending Linux did not completely close all IUCV "
+                        "connections\n");
+        iucv_pm_state = IUCV_PM_RESTORING;
         if (cpus_empty(iucv_irq_cpumask)) {
                 rc = iucv_query_maxconn();
                 rc = iucv_enable();