linux-kernel - Re: [PATCH v2] tee: qcomtee: initialize result before use in release worker

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Message-ID: <aRqyrIxcWk8tYYOi@sumit-X1>
Date: Mon, 17 Nov 2025 10:59:16 +0530
From: Sumit Garg <sumit.garg@...nel.org>
To: Amirreza Zarrabi <amirreza.zarrabi@....qualcomm.com>
Cc: Jens Wiklander <jens.wiklander@...aro.org>,
	linux-arm-msm@...r.kernel.org, op-tee@...ts.trustedfirmware.org,
	linux-kernel@...r.kernel.org,
	Dan Carpenter <dan.carpenter@...aro.org>
Subject: Re: [PATCH v2] tee: qcomtee: initialize result before use in release
 worker

On Thu, Nov 13, 2025 at 07:38:42PM -0800, Amirreza Zarrabi wrote:
> Initialize result to 0 so the error path doesn't read it
> uninitialized when the invoke fails. Fixes a Smatch warning.
> 
> Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
> Closes: https://lore.kernel.org/op-tee/7c1e0de2-7d42-4c6b-92fe-0e4fe5d650b5@oss.qualcomm.com/
> Fixes: d6e290837e50 ("tee: add Qualcomm TEE driver")
> Signed-off-by: Amirreza Zarrabi <amirreza.zarrabi@....qualcomm.com>
> ---
> Changes in v2:
> - Update subject to tee: qcomtee:.
> - Link to v1: https://lore.kernel.org/r/20251110-qcom-tee-fix-warning-v1-1-d962f99f385d@oss.qualcomm.com
> ---
>  drivers/tee/qcomtee/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Sumit Garg <sumit.garg@....qualcomm.com>

-Sumit

> 
> diff --git a/drivers/tee/qcomtee/core.c b/drivers/tee/qcomtee/core.c
> index b6715ada7700..ecd04403591c 100644
> --- a/drivers/tee/qcomtee/core.c
> +++ b/drivers/tee/qcomtee/core.c
> @@ -82,7 +82,7 @@ static void qcomtee_do_release_qtee_object(struct work_struct *work)
>  {
>  	struct qcomtee_object *object;
>  	struct qcomtee *qcomtee;
> -	int ret, result;
> +	int ret, result = 0;
>  
>  	/* RELEASE does not require any argument. */
>  	struct qcomtee_arg args[] = { { .type = QCOMTEE_ARG_TYPE_INV } };
> 
> ---
> base-commit: ab40c92c74c6b0c611c89516794502b3a3173966
> change-id: 20251110-qcom-tee-fix-warning-3d58d74a22d8
> 
> Best regards,
> -- 
> Amirreza Zarrabi <amirreza.zarrabi@....qualcomm.com>
>