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Commit 3af866a0 authored by Nishant Pandey's avatar Nishant Pandey
Browse files

securemsm-kernel: Decrement the server object ref count 


in mutex context

Decrement the smcinvoke server object refcount in mutex context
so that we never get an object which is being freed.

Change-Id: I524a58d68c51ef0bec39039915d3d7f88b0c60b2
Signed-off-by: default avatarNishant Pandey <quic_nishpand@quicinc.com>
parent d8204f4d

drivers/soc/qcom/smcinvoke.c

+5 −2
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.

 * Copyright (c) 2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved.

 */



#define pr_fmt(fmt) "smcinvoke: %s: " fmt, __func__
@@ -1672,8 +1672,11 @@ static long process_accept_req(struct file *filp, unsigned int cmd, 
		}

	} while (!cb_txn);

out:

	if (server_info)

	if (server_info) {

		mutex_lock(&g_smcinvoke_lock);

		kref_put(&server_info->ref_cnt, destroy_cb_server);

		mutex_unlock(&g_smcinvoke_lock);

	}



	if (ret && ret != -ERESTARTSYS)

		pr_err("accept thread returning with ret: %d\n", ret);