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Bluetooth: Fix return value in hci_dev_do_close()
hci_error_reset() return without calling hci_dev_do_open() when
hci_dev_do_close() return error value which is not 0.
Also, hci_dev_close() return hci_dev_do_close() function's return
value.
But, hci_dev_do_close() return always 0 even if hdev->shutdown
return error value. So, fix hci_dev_do_close() to save and return
the return value of the hdev->shutdown when it is called.
Signed-off-by: Kangmin Park <l4stpr0gr4m@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>