mISDN: Read buffer overflow

Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 990e6a7e6674..0ebce046ade4 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -1480,7 +1480,7 @@ l1oip_init(void)
                 return -ENOMEM;
 
         l1oip_cnt = 0;
-        while (type[l1oip_cnt] && l1oip_cnt < MAX_CARDS) {
+        while (l1oip_cnt < MAX_CARDS && type[l1oip_cnt]) {
                 switch (type[l1oip_cnt] & 0xff) {
                 case 1:
                         pri = 0;