[flashrom-gerrit] Change in flashrom[master]: serial: Fix file read/write error handling for Windows

[David Hendricks (Code Review)]

Hello Miklós Márton, Angel Pons,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/43051

to look at the new patch set (#2).

Change subject: serial: Fix file read/write error handling for Windows
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serial: Fix file read/write error handling for Windows

File read/write semantics are different between POSIX and Windows. In
particular Windows file read/write functions return a boolean type to
indicate success or failure, while the POSIX equivalents return a
signed integer indicating number of bytes read if successful or -1 if
not.

This attempts to correct some error handling paths for Windows and
avoid invalid comparisons that were causing compilation issues.

Reported on https://github.com/flashrom/flashrom/issues/149

Change-Id: Ib179d51ede2dbd38f54f3641bfe90340a6a87e31
Signed-off-by: David Hendricks 
---
M serial.c
1 file changed, 22 insertions(+), 8 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/51/43051/2