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

    --
    Chris Wilson, Intel Open Source Technology Centre


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