sysfs: flatten cleanup paths in sysfs_add_link() and create_dir()
Flatten cleanup paths in sysfs_add_link() and create_dir() to improve readability and ease further changes to these functions. This is in preparation of object reference simplification. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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