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Date:   Wed, 22 Nov 2017 22:26:11 +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:     Bryan O'Donoghue <pure.logic@...us-software.ie>,
        Alex Elder <elder@...nel.org>,
        Mitch Tasman <tasman@...flabs.com>,
        "greybus-dev@...ts.linaro.org" <greybus-dev@...ts.linaro.org>,
        "devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.9 04/24] staging: greybus: loopback: Fix
 iteration count on async path

From: Bryan O'Donoghue <pure.logic@...us-software.ie>

[ Upstream commit 44b02da39210e6dd67e39ff1f48d30c56d384240 ]

Commit 12927835d211 ("greybus: loopback: Add asynchronous bi-directional
support") does what it says on the tin - namely, adds support for
asynchronous bi-directional loopback operations.

What it neglects to do though is increment the per-connection
gb->iteration_count on an asynchronous operation error. This patch fixes
that omission.

Fixes: 12927835d211 ("greybus: loopback: Add asynchronous bi-directional support")

Signed-off-by: Bryan O'Donoghue <pure.logic@...us-software.ie>
Reported-by: Mitch Tasman <tasman@...flabs.com>
Reviewed-by: Johan Hovold <johan@...nel.org>
Cc: Alex Elder <elder@...nel.org>
Cc: Mitch Tasman <tasman@...flabs.com>
Cc: greybus-dev@...ts.linaro.org
Cc: devel@...verdev.osuosl.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
---
 drivers/staging/greybus/loopback.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index 29dc249b0c74..3c2c233c2e49 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -1034,8 +1034,10 @@ static int gb_loopback_fn(void *data)
 				error = gb_loopback_async_sink(gb, size);
 			}
 
-			if (error)
+			if (error) {
 				gb->error++;
+				gb->iteration_count++;
+			}
 		} else {
 			/* We are effectively single threaded here */
 			if (type == GB_LOOPBACK_TYPE_PING)
-- 
2.11.0

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