[PATCH] s390: synthax checking for VIPA addresses fixed

[patch 1/7] s390: synthax checking for VIPA addresses fixed

From: Peter Tiedemann <ptiedem@de.ibm.com>
	- synthax checking for VIPA addresses fixed

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>

diffstat:
 qeth.h     |   65 ++++++++++++++++++++++++++++++++++++++++++++++++-------------
 qeth_sys.c |    6 ++---
 2 files changed, 55 insertions(+), 16 deletions(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c
index f91a02d..f43adb9 100644
--- a/drivers/s390/net/qeth_sys.c
+++ b/drivers/s390/net/qeth_sys.c
@@ -1,6 +1,6 @@
 /*
  *
- * linux/drivers/s390/net/qeth_sys.c ($Revision: 1.55 $)
+ * linux/drivers/s390/net/qeth_sys.c ($Revision: 1.58 $)
  *
  * Linux on zSeries OSA Express and HiperSockets support
  * This file contains code related to sysfs.
@@ -20,7 +20,7 @@
 #include "qeth_mpc.h"
 #include "qeth_fs.h"
 
-const char *VERSION_QETH_SYS_C = "$Revision: 1.55 $";
+const char *VERSION_QETH_SYS_C = "$Revision: 1.58 $";
 
 /*****************************************************************************/
 /*                                                                           */
@@ -1117,7 +1117,7 @@
 	start = buf;
 	/* get address string */
 	end = strchr(start, '/');
-	if (!end){
+	if (!end || (end-start >= 49)){
 		PRINT_WARN("Invalid format for ipato_addx/delx. "
 			   "Use <ip addr>/<mask bits>\n");
 		return -EINVAL;