[S390] zcrypt: module unload fixes.

Add code to reset all queues for a domain and add missing tasklet_kill
call to ap bus module exit code.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index ad60afe5dd11..81b5899f4010 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1129,7 +1129,15 @@ static void ap_poll_thread_stop(void)
         mutex_unlock(&ap_poll_thread_mutex);
 }
 
-static void ap_reset(void)
+static void ap_reset_domain(void)
+{
+        int i;
+
+        for (i = 0; i < AP_DEVICES; i++)
+                ap_reset_queue(AP_MKQID(i, ap_domain_index));
+}
+
+static void ap_reset_all(void)
 {
         int i, j;
 
@@ -1139,7 +1147,7 @@ static void ap_reset(void)
 }
 
 static struct reset_call ap_reset_call = {
-        .fn = ap_reset,
+        .fn = ap_reset_all,
 };
 
 /**
@@ -1229,10 +1237,12 @@ void ap_module_exit(void)
         int i;
         struct device *dev;
 
+        ap_reset_domain();
         ap_poll_thread_stop();
         del_timer_sync(&ap_config_timer);
         del_timer_sync(&ap_poll_timer);
         destroy_workqueue(ap_work_queue);
+        tasklet_kill(&ap_tasklet);
         s390_root_dev_unregister(ap_root_device);
         while ((dev = bus_find_device(&ap_bus_type, NULL, NULL,
                     __ap_match_all)))