Re: [PATCH] gpio: pca953x: initialize ret to zero to avoid returning garbage

From: Phil Reid
Date: Tue Sep 13 2016 - 00:04:10 EST


On 12/09/2016 21:40, Linus Walleij wrote:
On Fri, Sep 9, 2016 at 10:31 AM, Colin King <colin.king@xxxxxxxxxxxxx> wrote:

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

ret is not initialized so it contains garbage. Ensure garbage
is not returned in the case that pdata && pdata->teardown is false
by initializing ret to 0.

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Patch applied.
G'day Linus,


I believe this does the same as Arnd Bergmanns patch from 26 Aug.
[PATCH 1/5] gpio: pca954x: fix undefined error code from remove

IMO Colin's is the cleaner solution.
Arnd's could be removed.

--
Regards
Phil Reid