From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/tee/optee/supp.c | 21 ++++++++++-----------
1 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/kernel/drivers/tee/optee/supp.c b/kernel/drivers/tee/optee/supp.c
index 3e644a1..2d556b7 100644
--- a/kernel/drivers/tee/optee/supp.c
+++ b/kernel/drivers/tee/optee/supp.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015, Linaro Limited
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/device.h>
#include <linux/slab.h>
@@ -88,13 +79,21 @@
{
struct optee *optee = tee_get_drvdata(ctx->teedev);
struct optee_supp *supp = &optee->supp;
- struct optee_supp_req *req = kzalloc(sizeof(*req), GFP_KERNEL);
+ struct optee_supp_req *req;
bool interruptable;
u32 ret;
unsigned long timeleft;
int id;
struct optee_supp_req *get_req;
+ /*
+ * Return in case there is no supplicant available and
+ * non-blocking request.
+ */
+ if (!supp->ctx && ctx->supp_nowait)
+ return TEEC_ERROR_COMMUNICATION;
+
+ req = kzalloc(sizeof(*req), GFP_KERNEL);
if (!req)
return TEEC_ERROR_OUT_OF_MEMORY;
--
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