[patch 4/5] net/ipv6/ip6_flowlabel.c: copy_to_user return code

[domen@xxxxxxxxxxxx]

compile warning cleanup - handle copy_to/from_user error 
returns

Signed-off-by: Stephen Biggs <yrgrknmxpzlk@xxxxxxxxx>
Signed-off-by: Domen Puncer <domen@xxxxxxxxxxxx>
---


 kj-domen/net/ipv6/ip6_flowlabel.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff -puN net/ipv6/ip6_flowlabel.c~return_code-net_ipv6_ip6_flowlabel 
net/ipv6/ip6_flowlabel.c
--- kj/net/ipv6/ip6_flowlabel.c~return_code-net_ipv6_ip6_flowlabel      
2005-03-05 16:13:10.000000000 +0100
+++ kj-domen/net/ipv6/ip6_flowlabel.c   2005-03-05 16:13:10.000000000 +0100
@@ -537,9 +537,13 @@ release:
                        goto done;
 
                /* Do not check for fault */
-               if (!freq.flr_label)
-                       copy_to_user(&((struct in6_flowlabel_req __user *) 
optval)->flr_label,
-                                    &fl->label, sizeof(fl->label));
+               if (!freq.flr_label) {
+                       if (copy_to_user(&((struct in6_flowlabel_req __user 
*)optval)->flr_label,
+                                    &fl->label, sizeof(fl->label))) {
+                               err = -EFAULT;
+                               goto done;
+                       }
+               }
 
                sfl1->fl = fl;
                sfl1->next = np->ipv6_fl_list;
_