1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index 565e4cf04a02..8249762192d5 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -859,7 +859,11 @@ static int __init lp_setup (char *str)
         } else if (!strcmp(str, "auto")) {
                 parport_nr[0] = LP_PARPORT_AUTO;
         } else if (!strcmp(str, "none")) {
-                parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+                if (parport_ptr < LP_NO)
+                        parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+                else
+                        printk(KERN_INFO "lp: too many ports, %s ignored.\n",
+                               str);
         } else if (!strcmp(str, "reset")) {
                 reset = 1;
         }