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Message-ID: <c0fb0480-5078-40eb-b1eb-dc5a7859f399@redhat.com>
Date: Mon, 4 Mar 2024 17:57:26 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: Harshit Mogalapalli <harshit.m.mogalapalli@...cle.com>,
Shyam Sundar S K <Shyam-sundar.S-k@....com>,
Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
Mario Limonciello <mario.limonciello@....com>,
platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org, dan.carpenter@...aro.org
Subject: Re: [PATCH] platform/x86/amd/pmf: Fix missing error code in
amd_pmf_init_smart_pc()
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@...cle.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
> ---
> 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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