From: Ben Pfaff <blp@nicira.com>
Date: Tue, 27 Apr 2010 17:21:12 +0000 (-0700)
Subject: datapath: Fix argument to strncpy_from_user().
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1224e8fc1da9cddef6bdb24814300893bb2ace89;p=openvswitch

datapath: Fix argument to strncpy_from_user().

The strncpy_from_user() function's 'count' argument is documented to
include the trailing null byte, but create_dp() did not include it.  This
commit adds it in.
---

diff --git a/datapath/datapath.c b/datapath/datapath.c
index e1320f24..be16044d 100644
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -203,7 +203,7 @@ static int create_dp(int dp_idx, const char __user *devnamep)
 
 	if (devnamep) {
 		err = -EFAULT;
-		if (strncpy_from_user(devname, devnamep, IFNAMSIZ - 1) < 0)
+		if (strncpy_from_user(devname, devnamep, IFNAMSIZ) < 0)
 			goto err;
 		devname[IFNAMSIZ - 1] = '\0';
 	} else {