[Intel-gfx] [PATCH i-g-t v2] lib/igt_sysfs: Let igt_sysfs_read|write return -errno

[Chris Wilson]

Quoting Chris Wilson (2017-12-07 16:59:36)
> Quoting Michal Wajdeczko (2017-12-07 16:52:46)
> > In some cases debugfs or sysfs may return errors that we
> > want to check. Return -errno from helper functions to make
> > asserts easier.
> > 
> > v2: don't forget about EOF ret=0 (Chris)
> >     small re-write (Michal)
> > 
> > Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
> > Cc: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

And pushed.
-Chris