net/ipv4: Eliminate kstrdup memory leak

[net-next-2.6.git] / net / ipv4 / tcp_cong.c

diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 0ec9bd0ae94f2ef37024ac11c5e411f0179c816a..850c737e08e2a4a9185c64c8776711d83b8c7b08 100644 (file)
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -196,10 +196,10 @@ void tcp_get_allowed_congestion_control(char *buf, size_t maxlen)
 int tcp_set_allowed_congestion_control(char *val)
 {
        struct tcp_congestion_ops *ca;
-       char *clone, *name;
+       char *saved_clone, *clone, *name;
        int ret = 0;
 
-       clone = kstrdup(val, GFP_USER);
+       saved_clone = clone = kstrdup(val, GFP_USER);
        if (!clone)
                return -ENOMEM;
 
@@ -226,6 +226,7 @@ int tcp_set_allowed_congestion_control(char *val)
        }
 out:
        spin_unlock(&tcp_cong_list_lock);
+       kfree(saved_clone);
 
        return ret;
 }