From 7ffaba042e0e997832032b2d7b062dc27a7ebb2d Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Tue, 24 Nov 2020 09:33:15 +0800
Subject: [PATCH] soundwire: bus: reset slave_notify status at each loop
Git-commit: 7ffaba042e0e997832032b2d7b062dc27a7ebb2d
Patch-mainline: v5.11-rc1
References: jsc#SLE-16518

The code loops multiple times to deal with pending interrupts, but we
never reset the slave_notify status.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20201124013318.8963-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/soundwire/bus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 45131b9f5080..d6e646521819 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -1425,7 +1425,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
 	u8 clear = 0, bit, port_status[15] = {0};
 	int port_num, stat, ret, count = 0;
 	unsigned long port;
-	bool slave_notify = false;
+	bool slave_notify;
 	u8 sdca_cascade = 0;
 	u8 buf, buf2[2], _buf, _buf2[2];
 	bool parity_check;
@@ -1467,6 +1467,8 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
 	}
 
 	do {
+		slave_notify = false;
+
 		/*
 		 * Check parity, bus clash and Slave (impl defined)
 		 * interrupt
-- 
2.26.2