Patch merged into coreboot/master: f396ad5 exynos5420: i2c: Fix error handling.

the following patch was just integrated into master:
commit f396ad5a6c5dec6c84343005a38c0931e7281e69
Author: Gabe Black 
Date:   Mon Jun 24 03:20:22 2013 -0700

exynos5420: i2c: Fix error handling.

The functions which checked the status of a transfer would return success if
    the bus was no longer occupied, even if it's no longer occupied because the
    transfer failed. This change modifies those functions to return three possible
    values, 0 if the transfer isn't done, -1 if there was a fault, and 1 if the
    transaction completed successfully.

Change-Id: Idcc5fdf73cab3c3ece0e96f14113a216db289e05
    Signed-off-by: Gabe Black 
    Reviewed-on: http://review.coreboot.org/3704
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer

See http://review.coreboot.org/3704 for details.

-gerrit