linux-kernel - Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

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Message-ID: <YrXLrVUIavGWC4sx@aptenodytes>
Date:   Fri, 24 Jun 2022 16:35:25 +0200
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Maxime Ripard <mripard@...nel.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] drm: logicvc: Fix uninitialized variable in probe

Hi Dan,

On Tue 14 Jun 22, 15:08, Dan Carpenter wrote:
> The "regmap" is supposed to be initialized to NULL but it's used
> without being initialized.
> 
> Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Nice catch, thanks a lot!

Acked-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Cheers,

Paul

> ---
>  drivers/gpu/drm/logicvc/logicvc_drm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c b/drivers/gpu/drm/logicvc/logicvc_drm.c
> index df1805cf0f95..0b983a33f9ff 100644
> --- a/drivers/gpu/drm/logicvc/logicvc_drm.c
> +++ b/drivers/gpu/drm/logicvc/logicvc_drm.c
> @@ -298,7 +298,7 @@ static int logicvc_drm_probe(struct platform_device *pdev)
>  	struct logicvc_drm *logicvc;
>  	struct device *dev = &pdev->dev;
>  	struct drm_device *drm_dev;
> -	struct regmap *regmap;
> +	struct regmap *regmap = NULL;
>  	struct resource res;
>  	void __iomem *base;
>  	int irq;
> -- 
> 2.35.1
> 

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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