linux-kernel - [PATCH] soc: qcom: smd: Reset rx tail rather than tx

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Date:   Fri, 26 Aug 2016 14:59:17 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <andy.gross@...aro.org>
Cc:     Jeremy McNicoll <jmcnicol@...hat.com>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] soc: qcom: smd: Reset rx tail rather than tx

The local end of each SMD channel is responsible for updating the tx
head and the rx tail, as such we should not touch the tx tail during a
reset.

Reported-by: Jeremy McNicoll <jmcnicol@...hat.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 drivers/soc/qcom/smd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/smd.c b/drivers/soc/qcom/smd.c
index ac1957dfdf24..f11ec84ab0ce 100644
--- a/drivers/soc/qcom/smd.c
+++ b/drivers/soc/qcom/smd.c
@@ -374,7 +374,7 @@ static void qcom_smd_channel_reset(struct qcom_smd_channel *channel)
 	SET_TX_CHANNEL_FLAG(channel, fSTATE, 1);
 	SET_TX_CHANNEL_FLAG(channel, fBLOCKREADINTR, 1);
 	SET_TX_CHANNEL_INFO(channel, head, 0);
-	SET_TX_CHANNEL_INFO(channel, tail, 0);
+	SET_RX_CHANNEL_INFO(channel, tail, 0);
 
 	qcom_smd_signal_channel(channel);
 
-- 
2.5.0