[PATCH] fix memory leak in socket.c

[Robert Love]

This fixes a memory leak in sock_fasync :: net/socket.c.

I sent a fix to Linus and it is now in 2.5.

2.4 and 2.4-ac still require the fix... the following patch applies to
2.4.19-rc1 and 2.4.19-rc1-ac5.

	Robert Love

diff -urN linux-2.4.19-sausage/net/socket.c linux/net/socket.c
--- linux-sausage/net/socket.c	Mon Jun 10 15:26:30 2002
+++ linux/net/socket.c	Mon Jun 10 15:37:48 2002
@@ -743,11 +743,13 @@
 			return -ENOMEM;
 	}
 
-
 	sock = socki_lookup(filp->f_dentry->d_inode);
 	
-	if ((sk=sock->sk) == NULL)
+	if ((sk=sock->sk) == NULL) {
+		if (fna)
+			kfree(fna);
 		return -EINVAL;
+	}
 
 	lock_sock(sk);