linux-kernel - [PATCH AUTOSEL for 4.14 057/135] rpmsg: glink: Initialize the "intent_req

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Date:   Thu, 7 Dec 2017 15:45:44 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Arun Kumar Neelakantam <aneela@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.14 057/135] rpmsg: glink: Initialize the
 "intent_req_comp" completion variable

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>
---
 drivers/rpmsg/qcom_glink_native.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index e3242a0925a6..e8e12c2b1d0e 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -227,6 +227,7 @@ static struct glink_channel *qcom_glink_alloc_channel(struct qcom_glink *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);
-- 
2.11.0