linux-kernel - [PATCH V4 2/3] i2c: qup: Fix wrong value of index variable

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Date:	Fri, 10 Jun 2016 23:38:20 +0530
From:	Sricharan R <sricharan@...eaurora.org>
To:	linux-arm-msm@...r.kernel.org, ntelkar@...eaurora.org,
	galak@...eaurora.org, linux-kernel@...r.kernel.org,
	andy.gross@...aro.org, linux-i2c@...r.kernel.org,
	agross@...eaurora.org, linux-arm-kernel@...ts.infradead.org,
	nkaje@...eaurora.org, absahu@...eaurora.org
Cc:	sricharan@...eaurora.org
Subject: [PATCH V4 2/3] i2c: qup: Fix wrong value of index variable

index gets incremented during check to determine if the
messages can be transferred with dma. But not reset after
that, resulting in wrong start value in subsequent loop,
causing failure. Fix it.

Signed-off-by: Sricharan R <sricharan@...eaurora.org>
---
 drivers/i2c/busses/i2c-qup.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
index 43adc2d..b8116e5 100644
--- a/drivers/i2c/busses/i2c-qup.c
+++ b/drivers/i2c/busses/i2c-qup.c
@@ -1260,6 +1260,8 @@ static int qup_i2c_xfer_v2(struct i2c_adapter *adap,
 		}
 	}
 
+	idx = 0;
+
 	do {
 		if (msgs[idx].len == 0) {
 			ret = -EINVAL;
-- 
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