linux-kernel - Re: [PATCH] firmware/sysfb: fix an error code in sysfb

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Message-ID: <0808bf76-ed7f-44cd-b053-da09ba29fdc4@suse.de>
Date: Thu, 22 Feb 2024 09:10:33 +0100
From: Thomas Zimmermann <tzimmermann@...e.de>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: Javier Martinez Canillas <javierm@...hat.com>,
 Helge Deller <deller@....de>, Huacai Chen <chenhuacai@...nel.org>,
 Ard Biesheuvel <ardb@...nel.org>, Hans de Goede <hdegoede@...hat.com>,
 linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] firmware/sysfb: fix an error code in sysfb_init()



Am 22.02.24 um 07:13 schrieb Dan Carpenter:
> This error path accidentally returns success when it should preserve the
> error code from sysfb_parent_dev().

Thanks! I'll land the patch via drm-misc.

>
> Fixes: 4e754597d603 ("firmware/sysfb: Create firmware device only for enabled PCI devices")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>

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

> ---
>   drivers/firmware/sysfb.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/sysfb.c b/drivers/firmware/sysfb.c
> index a6b48703dc9e..880ffcb50088 100644
> --- a/drivers/firmware/sysfb.c
> +++ b/drivers/firmware/sysfb.c
> @@ -127,8 +127,10 @@ static __init int sysfb_init(void)
>   	sysfb_apply_efi_quirks();
>   
>   	parent = sysfb_parent_dev(si);
> -	if (IS_ERR(parent))
> +	if (IS_ERR(parent)) {
> +		ret = PTR_ERR(parent);
>   		goto unlock_mutex;
> +	}
>   
>   	/* try to create a simple-framebuffer device */
>   	compatible = sysfb_parse_mode(si, &mode);

-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)