tree 9afb982b11122e21482449f0a2df9ca40558186e
parent 6fde6fdaeec8041a43e1ce246b282c55613302c5
author Ben Fennema <fennema@google.com> 1472678233 -0700
committer Ben Fennema <fennema@google.com> 1472684675 -0700

stm32f4xx: pass through i2c error conditions to callback function

i2c callback function would always indicate success, even when an
error occured.

Fixed i2c drivers to store err value returned by the i2c calls

Bug: 31069187
Change-Id: I8fcada69600e4955219f7dc4750b108a85de415a
Signed-off-by: Ben Fennema <fennema@google.com>