[PATCH 1/6] btrfs: remove unused drop_on_err in btrfs_mkdir()

[Johannes Thumshirn]

Up to commit 32955c5422a8 (btrfs: switch to discard_new_inode()) the
drop_on_err variable in btrfs_mkdir() was used to check whether the inode had
to be dropped via iput().

After commit 32955c5422a8 (btrfs: switch to discard_new_inode())
discard_new_inode() is called when err is set and inode is non NULL. Therefore
drop_on_err is not used anymore and thus causes a warning when building with
-Wunused-but-set-variable.

Signed-off-by: Johannes Thumshirn <jthumsh...@suse.de>
---
 fs/btrfs/inode.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 4a2f9f7fd96e..7d17b0a654e6 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6677,7 +6677,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry 
*dentry, umode_t mode)
        struct btrfs_trans_handle *trans;
        struct btrfs_root *root = BTRFS_I(dir)->root;
        int err = 0;
-       int drop_on_err = 0;
        u64 objectid = 0;
        u64 index = 0;
 
@@ -6703,7 +6702,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry 
*dentry, umode_t mode)
                goto out_fail;
        }
 
-       drop_on_err = 1;
        /* these must be set before we unlock the inode */
        inode->i_op = &btrfs_dir_inode_operations;
        inode->i_fop = &btrfs_dir_file_operations;
@@ -6724,7 +6722,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry 
*dentry, umode_t mode)
                goto out_fail;
 
        d_instantiate_new(dentry, inode);
-       drop_on_err = 0;
 
 out_fail:
        btrfs_end_transaction(trans);
-- 
2.16.4