linux-kernel - [PATCH 2/2] thunderbolt: Mask ring interrupt properly when polling starts

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Date:   Mon, 27 Nov 2017 14:48:58 +0300
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Yehezkel Bernat <yehezkel.bernat@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>
Subject: [PATCH 2/2] thunderbolt: Mask ring interrupt properly when polling starts

When ring enters polling mode we are expected to mask the ring interrupt
before the callback is called. However, the current code actually
unmasks it probably because of a copy-paste mistake.

Mask the interrupt properly from now on.

Fixes: 4ffe722eefcb ("thunderbolt: Add polling mode for rings")
Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
---
 drivers/thunderbolt/nhi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 419a7a90bce0..f45bcbc63738 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -339,7 +339,7 @@ static void __ring_interrupt(struct tb_ring *ring)
 		return;
 
 	if (ring->start_poll) {
-		__ring_interrupt_mask(ring, false);
+		__ring_interrupt_mask(ring, true);
 		ring->start_poll(ring->poll_data);
 	} else {
 		schedule_work(&ring->work);
-- 
2.15.0