linux-kernel - [PATCH 4.14 102/178] rpmsg: glink: Initialize the "intent_req

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Date:   Mon, 18 Dec 2017 16:48:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Arun Kumar Neelakantam <aneela@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 102/178] rpmsg: glink: Initialize the "intent_req_comp" completion variable

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arun Kumar Neelakantam <aneela@...eaurora.org>


[ Upstream commit 2394facb17bcace4b3c19b50202177a5d8903b64 ]

The "intent_req_comp" variable is used without initialization which
results in NULL pointer dereference in qcom_glink_request_intent().

we need to initialize the completion variable before using it.

Fixes: 27b9c5b66b23 ("rpmsg: glink: Request for intents when unavailable")
Signed-off-by: Arun Kumar Neelakantam <aneela@...eaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/rpmsg/qcom_glink_native.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -227,6 +227,7 @@ static struct glink_channel *qcom_glink_
 
 	init_completion(&channel->open_req);
 	init_completion(&channel->open_ack);
+	init_completion(&channel->intent_req_comp);
 
 	INIT_LIST_HEAD(&channel->done_intents);
 	INIT_WORK(&channel->intent_work, qcom_glink_rx_done_work);