Merge branches 'release', 'asus', 'sony-laptop' and 'thinkpad' into release

[linux-2.6-omap-h63xx.git] / net / sunrpc / auth_gss / auth_gss.c

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 1f2d85e869c0a2760de7641f7d3c125d80d54adb..6dac387922888def8781b2f6d6d104acab9dc97c 100644 (file)
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -472,16 +472,15 @@ gss_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg,
                char __user *dst, size_t buflen)
 {
        char *data = (char *)msg->data + msg->copied;
-       ssize_t mlen = msg->len;
-       ssize_t left;
+       size_t mlen = min(msg->len, buflen);
+       unsigned long left;
 
-       if (mlen > buflen)
-               mlen = buflen;
        left = copy_to_user(dst, data, mlen);
-       if (left < 0) {
-               msg->errno = left;
-               return left;
+       if (left == mlen) {
+               msg->errno = -EFAULT;
+               return -EFAULT;
        }
+
        mlen -= left;
        msg->copied += mlen;
        msg->errno = 0;