From: Dan Carpenter <redacted>
Date: Thu, 9 Feb 2012 13:49:34 +0300

The current error handling doesn't work because we flash_part is a u32
so the checks for negative error codes don't work.  I considered making
things signed but I don't know the hardware enough to say if that's a
problem.  Really, we don't use the error codes so just returning zero
for all problems is fine.

Signed-off-by: Dan Carpenter <redacted>

Looks good, applied, thanks Dan.