Pali Rohár d8865f8677 tools: kwboot: Check for return value of kwboot_tty_send() and tcflush()
Failure of kwboot_tty_send() and tcflush() functions is fatal, it does not
make sense to continue. So return error back to the caller like in other
places where are called these functions.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
2022-03-04 13:11:42 +01:00
..
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