linux-kernel - Re: [PATCH] gpu/drm: delete same check in if condition

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Mon, 2 Nov 2020 09:20:08 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Bernard Zhao <bernard@...o.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com
Subject: Re: [PATCH] gpu/drm: delete same check in if condition

Hi

Am 02.11.20 um 04:07 schrieb Bernard Zhao:
> In function drm_bridge_connector_get_modes_edid, drm_edid_is_valid
> will check weather (!edid), no need to check again in the if
> branch.
> 
> Signed-off-by: Bernard Zhao <bernard@...o.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@...e.de>

Thanks! I'll add the patch to drm-misc-next.

Best regards
Thomas

> ---
>  drivers/gpu/drm/drm_bridge_connector.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_bridge_connector.c b/drivers/gpu/drm/drm_bridge_connector.c
> index a58cbde59c34..791379816837 100644
> --- a/drivers/gpu/drm/drm_bridge_connector.c
> +++ b/drivers/gpu/drm/drm_bridge_connector.c
> @@ -241,7 +241,7 @@ static int drm_bridge_connector_get_modes_edid(struct drm_connector *connector,
>  		goto no_edid;
>  
>  	edid = bridge->funcs->get_edid(bridge, connector);
> -	if (!edid || !drm_edid_is_valid(edid)) {
> +	if (!drm_edid_is_valid(edid)) {
>  		kfree(edid);
>  		goto no_edid;
>  	}
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

Download attachment "OpenPGP_0x680DC11D530B7A23.asc" of type "application/pgp-keys" (4202 bytes)

Download attachment "OpenPGP_signature" of type "application/pgp-signature" (496 bytes)