kernel/relay.c: fix potential memory leak

When relay_open_buf() fails in relay_open(), code will goto free_bufs,
but chan is nowhere freed.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Zhouyi Zhou <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/kernel/relay.c b/kernel/relay.c
index 074994bcfa9be14336ecb06912a969f6d9546c9d..04d7cf3ef8cf932e036c7c76f6a27cefa962efc0 100644 (file)
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -614,6 +614,7 @@ free_bufs:
 
        kref_put(&chan->kref, relay_destroy_channel);
        mutex_unlock(&relay_channels_mutex);
+       kfree(chan);
        return NULL;
 }
 EXPORT_SYMBOL_GPL(relay_open);