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commit cc095f0ac1 upstream.
device_remove_group() was called on any cleanup, even if the
device attrs had not been added yet. That can occur in certain
error scenarios, so add a flag to know if it has been added.
Also make sure we remove the dev if we added it ourselves.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: stable@vger.kernel.org # 4.15
Cc: Laura Abbott <labbott@redhat.com>
Tested-by: Bill Perkins <wmp@grnwood.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>