Re: [PATCH] platform/x86/amd/pmf: Fix missing error code in amd_pmf_init_smart_pc()

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Hi,

On 2/26/24 15:40, Harshit Mogalapalli wrote:
> On the error path, assign -ENOMEM to ret when memory allocation of
> "dev->prev_data" fails.
> 
> Fixes: e70961505808 ("platform/x86/amd/pmf: Fixup error handling for amd_pmf_init_smart_pc()")
> Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>

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




> ---
> This is based on static analysis with smatch, only compile tested
> ---
>  drivers/platform/x86/amd/pmf/tee-if.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
> index 8527dca9cf56..dcbe8f85e122 100644
> --- a/drivers/platform/x86/amd/pmf/tee-if.c
> +++ b/drivers/platform/x86/amd/pmf/tee-if.c
> @@ -458,8 +458,10 @@ int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev)
>  	amd_pmf_hex_dump_pb(dev);
>  
>  	dev->prev_data = kzalloc(sizeof(*dev->prev_data), GFP_KERNEL);
> -	if (!dev->prev_data)
> +	if (!dev->prev_data) {
> +		ret = -ENOMEM;
>  		goto error;
> +	}
>  
>  	ret = amd_pmf_start_policy_engine(dev);
>  	if (ret)





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