[S390] hvc_iucv: Update and add missing kernel messages

If the hvc_iucv= kernel parameter specifies a value that is not
valid, display an error message.
Minor changes to existing kernel messages.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index a53496828b76..146be5a60947 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -885,7 +885,7 @@ static int __init hvc_iucv_init(void)
         unsigned int i;
 
         if (!MACHINE_IS_VM) {
-                pr_info("The z/VM IUCV HVC device driver cannot "
+                pr_notice("The z/VM IUCV HVC device driver cannot "
                            "be used without z/VM\n");
                 return -ENODEV;
         }
@@ -893,8 +893,11 @@ static int __init hvc_iucv_init(void)
         if (!hvc_iucv_devices)
                 return -ENODEV;
 
-        if (hvc_iucv_devices > MAX_HVC_IUCV_LINES)
+        if (hvc_iucv_devices > MAX_HVC_IUCV_LINES) {
+                pr_err("%lu is not a valid value for the hvc_iucv= "
+                        "kernel parameter\n", hvc_iucv_devices);
                 return -EINVAL;
+        }
 
         hvc_iucv_buffer_cache = kmem_cache_create(KMSG_COMPONENT,
                                            sizeof(struct iucv_tty_buffer),