[S390] zcrypt: fix ap_reset_domain()

Resetting of a all queues within a domain requires that a domain must
be selected first.

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

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 90bd220..d334b0f 100644 (file)
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1231,8 +1231,9 @@ static void ap_reset_domain(void)
 {
        int i;
 
-       for (i = 0; i < AP_DEVICES; i++)
-               ap_reset_queue(AP_MKQID(i, ap_domain_index));
+       if (ap_domain_index != -1)
+               for (i = 0; i < AP_DEVICES; i++)
+                       ap_reset_queue(AP_MKQID(i, ap_domain_index));
 }
 
 static void ap_reset_all(void)