If the firmware upload or the firmware verification fails then we
printed the error message and exited but we missed releasing the
firmware.
Signed-off-by: NSudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>