From 89771cc98c5a4e8666e479dde171ffb52c6fa774 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Tue, 16 Feb 2016 13:32:47 +0530 Subject: [PATCH] btrfs: fix build warning MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: David Sterba --- 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); -- 2.7.4