Re: [PATCH 1/8 v7] drm/i915/intel_i2c: handle zero-length writes

On Fri, 30 Mar 2012 19:46:36 +0800, Daniel Kurtz djkurtz@chromium.org wrote:

A common method of probing an i2c bus is trying to do a zero-length write. Handle this case by checking the length first before decrementing it.

This is actually important, since attempting a zero-length write is one of the ways that i2cdetect and i2c_new_probed_device detect whether there is device present on the bus with a given address.

Signed-off-by: Daniel Kurtz djkurtz@chromium.org

Having done a good job with handling zero length writes, can I tempt to submit a similar fix for zero length reads? ;) -Chris