util/nvmutil: re-try reads if errno is EINTR

this is a bit of fault tolerance. a bit bloated too,
but it should make the code more resilient.

we limited the number of retries to 200 retries.

EINTR is when the syscall (read/pread) is interrupted.

we still error out on other conditions; we also still
error out on EINTR if the number of re-tries surpasses
200.

during this re-try loop, if *another* error occurs, we
exit as normal. this is done for both files: the gbe
file, and /dev/urandom.

Signed-off-by: Leah Rowe <leah@libreboot.org>

0 files changed, 0 insertions, 0 deletions