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authorSebastian Siewior <sebastian@breakpoint.cc>2007-07-27 22:55:59 +0200
committerVlad Yasevich <vladislav.yasevich@hp.com>2007-08-01 11:19:06 -0400
commitd6f9fdaf643eca8fb49fffdd6269b78f4ef1ef86 (patch)
tree785178ed69f6e7c24f929f439bfde1972c95dce7 /net/sctp
parentc86dabcf00f3ca167df59f3526a53b3da3ede2c8 (diff)
downloadlinux-d6f9fdaf643eca8fb49fffdd6269b78f4ef1ef86.tar.gz
sctp: try to fix readlock
unlock the reader lock in error case.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/socket.c16
1 files 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;
 }