[S] Change in flashrom[master]: flashrom.c: Replace 'exit(1)' leaks with return codes on err paths

[Angel Pons (Code Review)]

Attention is currently required from: Edward O'Callaghan.

Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/69474 )

Change subject: flashrom.c: Replace 'exit(1)' leaks with return codes on err paths
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Patch Set 3:

(1 comment)

Commit Message:

https://review.coreboot.org/c/flashrom/+/69474/comment/96bce863_a544e211 
PS3, Line 11: to occur.
Sorry, what exactly leaks if the program terminates? If `malloc()` or similar failed, it's likely because of a bigger problem with the system that is outside of flashrom's control; it's possible that flashrom may not be able to gracefully handle the situation.

That being said, getting rid of `exit()` calls makes sense for libflashrom users, as it prevents the callers from trying to handle errors.