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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>
steinar/wifi_calib_4_9_kernel
Sudip Mukherjee 2016-02-16 13:32:47 +05:30 committed by David Sterba
parent 47dc196ae7
commit 89771cc98c
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/extent-tree.c
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@ -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);