Commit 89771cc9 authored Feb 16, 2016 by Sudip Mukherjee Committed by David Sterba Feb 18, 2016

btrfs: fix build warning



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 <sudip@vectorindia.org>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 47dc196a

fs/btrfs/extent-tree.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

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