diff options
| -rw-r--r-- | net/sunrpc/sysctl.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c index 999eee1ed61c..e81a28f30f1d 100644 --- a/net/sunrpc/sysctl.c +++ b/net/sunrpc/sysctl.c @@ -70,7 +70,13 @@ static int proc_do_xprt(struct ctl_table *table, int write, return 0; } len = svc_print_xprts(tmpbuf, sizeof(tmpbuf)); - return memory_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len); + *lenp = memory_read_from_buffer(buffer, *lenp, ppos, tmpbuf, len); + + if (*lenp < 0) { + *lenp = 0; + return -EINVAL; + } + return 0; } static int |