fuse: destroy bdi on error

Destroy bdi on error in fuse_fill_super().

This was an omission from commit 26c3679101dbccc054dcf370143941844ba70531
"fuse: destroy bdi on umount", which moved the bdi_destroy() call from
fuse_conn_put() to fuse_put_super().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@kernel.org

fs/fuse/inode.c

@@ -908,6 +908,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
  err_put_root:
 	dput(root_dentry);
  err_put_conn:
+	bdi_destroy(&fc->bdi);
 	fuse_conn_put(fc);
  err_fput:
 	fput(file);