linux-kernel - Re: [PATCH 1/5] drm/gma500: fix error path in gma_intel_setup

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Date:	Wed, 10 Feb 2016 08:41:17 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
	David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/5] drm/gma500: fix error path in gma_intel_setup_gmbus()

On Tue, Feb 9, 2016 at 10:11 PM, Rasmus Villemoes
<linux@...musvillemoes.dk> wrote:
> The current code fails to call i2c_del_adapter on
> dev_prev->gmbus[0].adapter, and if the for loop above failed already
> at i==0, all hell breaks loose when we do the loop body for
> i = -1,-2,...
>

Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

> Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
> ---
>  drivers/gpu/drm/gma500/intel_gmbus.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/gma500/intel_gmbus.c b/drivers/gpu/drm/gma500/intel_gmbus.c
> index 566d330aaeea..e7e22187c539 100644
> --- a/drivers/gpu/drm/gma500/intel_gmbus.c
> +++ b/drivers/gpu/drm/gma500/intel_gmbus.c
> @@ -436,7 +436,7 @@ int gma_intel_setup_gmbus(struct drm_device *dev)
>         return 0;
>
>  err:
> -       while (--i) {
> +       while (i--) {
>                 struct intel_gmbus *bus = &dev_priv->gmbus[i];
>                 i2c_del_adapter(&bus->adapter);
>         }
> --
> 2.1.4
>



-- 
With Best Regards,
Andy Shevchenko