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net: qrtr: mhi: Return error code for wait timeout

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During mhi send, wait timeout can happen if qdev->prepared is
not set. 0 is returned from this timeout which gets propagated
to qrtr_node_enqueue. 0 will be considered as a success case
here, so qrtr won't try to resend HELLO packet.

Propagate ETIMEDOUT error from MHI layer during wait timeout
so that qrtr layer can retry sending HELLO packet in case
of this failure.

Change-Id: I0869472a900989a4fe4327dc350de4a113965674
Signed-off-by: Sarannya S <quic_sarannya@quicinc.com>
This commit is contained in:
Sarannya S 2024-03-12 13:12:40 +05:30
parent 3ca296e9bd
commit 7e0b0b0430
1 changed files with 3 additions and 1 deletions
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4
net/qrtr/mhi.c
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@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2022-2024, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/mhi.h>
@ -65,6 +65,8 @@ static int __qcom_mhi_qrtr_send(struct qrtr_endpoint *ep, struct sk_buff *skb)
rc = wait_for_completion_interruptible_timeout(&qdev->prepared, msecs_to_jiffies(5000));
if (rc <= 0) {
pr_err("%s : timeout:%d\n", __func__, rc);
if (rc == 0)
rc = -ETIMEDOUT;
goto free_skb;
}