From d6f9fdaf643eca8fb49fffdd6269b78f4ef1ef86 Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Fri, 27 Jul 2007 22:55:59 +0200 Subject: [PATCH] sctp: try to fix readlock unlock the reader lock in error case. Signed-off-by: Sebastian Siewior Signed-off-by: Vlad Yasevich --- net/sctp/socket.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/net/sctp/socket.c b/net/sctp/socket.c index b31be0994572..be743d4a7c09 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -4350,7 +4350,7 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len, space_left, &bytes_copied); if (cnt < 0) { err = cnt; - goto error; + goto error_lock; } goto copy_getaddrs; } @@ -4364,7 +4364,7 @@ static int sctp_getsockopt_local_addrs(struct sock *sk, int len, addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len; if (space_left < addrlen) { err = -ENOMEM; /*fixme: right error?*/ - goto error; + goto error_lock; } memcpy(buf, &temp, addrlen); buf += addrlen; @@ -4378,15 +4378,21 @@ copy_getaddrs: if (copy_to_user(to, addrs, bytes_copied)) { err = -EFAULT; - goto error; + goto out; } if (put_user(cnt, &((struct sctp_getaddrs __user *)optval)->addr_num)) { err = -EFAULT; - goto error; + goto out; } if (put_user(bytes_copied, optlen)) err = -EFAULT; -error: + + goto out; + +error_lock: + sctp_read_unlock(addr_lock); + +out: kfree(addrs); return err; } -- 2.20.1