On Mon, Nov 16, 2015 at 6:02 AM, Bamvor Jian Zhang
<bamvor.zhangj...@linaro.org> wrote:

> There are limitations for the current checker:
> 1.  Could not check the overlap if the new gpiochip is the secondly
>     gpiochip.
> 2.  Could not check the overlap if the new gpiochip is overlap
>     with the left of gpiochip. E.g. if we insert [c, d] between
>     [a,b] and [e, f], and e >= c + d, it will successful even if
>     c < a + b.
> 3.  Allow overlap of base of different gpiochip.
>
> This patch fix these issues by checking the overlap of both right and
> left gpiochip in the same loop statement.
>
> Signed-off-by: Bamvor Jian Zhang <bamvor.zhangj...@linaro.org>

Patch applied with some tweaks. Had to rebase it because
I renamed ->dev to ->parent in the GPIO tree, then I found
it possible to get rid of the ret variable altogether.

Yours,
Linus Walleij
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