Re: [PATCH] uio.c: Fix warning: 'ret' might be used uninitialized

From: Vitalii Demianets
Date: Wed Nov 28 2012 - 03:58:24 EST


On Wednesday 28 November 2012 00:43:41 Hans J. Koch wrote:
>
> Thanks, good catch, but why don't you simply do this:
>

Just a matter of personal preference. As a maintainer you can apply either
patch you want. I guess you would prefer your approach and I have no
objections to that :)

>
> >From 228445996bb75a44d16b6237eca6a0916d9b2d7e Mon Sep 17 00:00:00 2001
> From: "Hans J. Koch" <hjk@xxxxxxxxxxxx>
> Date: Tue, 27 Nov 2012 23:38:00 +0100
> Subject: [PATCH] uio: Fix warning: 'ret' might be used uninitialized
>
> In two cases, the return value variable "ret" can be undefined.
>
> Signed-off-by: Hans J. Koch <hjk@xxxxxxxxxxxx>
> ---
> drivers/uio/uio.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
> index 5110f36..fc60e35 100644
> --- a/drivers/uio/uio.c
> +++ b/drivers/uio/uio.c
> @@ -263,7 +263,7 @@ static struct class uio_class = {
> */
> static int uio_dev_add_attributes(struct uio_device *idev)
> {
> - int ret;
> + int ret = -ENOMEM;
> int mi, pi;
> int map_found = 0;
> int portio_found = 0;



--
With Best Regards,
Vitalii Demianets

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/