From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f178.google.com ([209.85.192.178]:34269 "EHLO mail-pf0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753953AbcBPIC6 (ORCPT ); Tue, 16 Feb 2016 03:02:58 -0500 From: Sudip Mukherjee To: Chris Mason , Josef Bacik , David Sterba Cc: linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, Sudip Mukherjee Subject: [PATCH] btrfs: fix build warning Date: Tue, 16 Feb 2016 13:32:47 +0530 Message-Id: <1455609767-26992-1-git-send-email-sudipm.mukherjee@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: We were getting build warning about: fs/btrfs/extent-tree.c:7021:34: warning: ‘used_bg’ may be used uninitialized in this function It is not a valid warning as used_bg is never used uninitilized since locked is initially false so we can never be in the section where 'used_bg' is used. But gcc is not able to understand that and we can initialize it while declaring to silence the warning. Signed-off-by: Sudip Mukherjee --- fs/btrfs/extent-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index e2287c7..f24e4c3 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -7018,7 +7018,7 @@ btrfs_lock_cluster(struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster, int delalloc) { - struct btrfs_block_group_cache *used_bg; + struct btrfs_block_group_cache *used_bg = NULL; bool locked = false; again: spin_lock(&cluster->refill_lock); -- 1.9.1