Pali Rohár 7938b3be7c tools: kwboot: Fix quitting terminal
Sometimes kwboot after quitting terminal prints error message:

  terminal: Bad address

This is caused by trying to call write() syscall with count of (size_t)-1
bytes.

When quit sequence is split into more read() calls then number of input
bytes (nin) at the end of cycle can underflow and be negative. Fix it.

Fixes: de7514046ea5 ("tools: kwboot: Fix detection of quit esc sequence")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-03-04 08:38:05 +01:00
..
2019-07-29 00:20:31 +02:00
2021-01-13 02:38:00 +01:00
2022-01-19 18:11:34 +01:00
2022-01-28 17:58:41 -05:00
2022-03-04 08:38:05 +01:00
2022-01-19 18:11:34 +01:00
2019-11-04 18:15:32 -07:00