linux-kernel - Re: [PATCH 1/5] platform/x86/intel/ifs: Call release

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Date: Fri, 26 Jan 2024 20:15:46 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: Ashok Raj <ashok.raj@...el.com>,
 Ilpo Jarvinen <ilpo.jarvinen@...ux.intel.com>, markgross@...nel.org
Cc: Jithu Joseph <jithu.joseph@...el.com>, rostedt@...dmis.org,
 tony.luck@...el.com, LKML <linux-kernel@...r.kernel.org>,
 platform-driver-x86@...r.kernel.org, patches@...ts.linux.dev,
 pengfei.xu@...el.com
Subject: Re: [PATCH 1/5] platform/x86/intel/ifs: Call release_firmware() when
 handling errors.

Hi,

On 1/25/24 09:22, Ashok Raj wrote:
> From: Jithu Joseph <jithu.joseph@...el.com>
> 
> Missing release_firmware() due to error handling blocked any future image
> loading.
> 
> Fix the return code and release_fiwmare() to release the bad image.
> 
> Fixes: 25a76dbb36dd ("platform/x86/intel/ifs: Validate image size")
> Reported-by: Pengfei Xu <pengfei.xu@...el.com>
> Signed-off-by: Jithu Joseph <jithu.joseph@...el.com>
> Signed-off-by: Ashok Raj <ashok.raj@...el.com>
> Tested-by: Pengfei Xu <pengfei.xu@...el.com>
> Reviewed-by: Tony Luck <tony.luck@...el.com>

Thank you for your patch/series, I've applied this patch
(series) to my review-hans branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in the pdx86 review-hans branch once I've
pushed my local branch there, which might take a while.

I will include this patch in my next fixes pull-req to Linus
for the current kernel development cycle.

Regards,

Hans

> ---
>  drivers/platform/x86/intel/ifs/load.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/intel/ifs/load.c b/drivers/platform/x86/intel/ifs/load.c
> index a1ee1a74fc3c..2cf3b4a8813f 100644
> --- a/drivers/platform/x86/intel/ifs/load.c
> +++ b/drivers/platform/x86/intel/ifs/load.c
> @@ -399,7 +399,8 @@ int ifs_load_firmware(struct device *dev)
>  	if (fw->size != expected_size) {
>  		dev_err(dev, "File size mismatch (expected %u, actual %zu). Corrupted IFS image.\n",
>  			expected_size, fw->size);
> -		return -EINVAL;
> +		ret = -EINVAL;
> +		goto release;
>  	}
>  
>  	ret = image_sanity_check(dev, (struct microcode_header_intel *)fw->data);