linux-kernel - [PATCH AUTOSEL 5.14 37/75] ASoC: es8316: Use IRQF_NO

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Message-Id: <20211109221905.1234094-37-sashal@kernel.org>
Date:   Tue,  9 Nov 2021 17:18:27 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>, lgirdwood@...il.com,
        perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 5.14 37/75] ASoC: es8316: Use IRQF_NO_AUTOEN when requesting the IRQ

From: Hans de Goede <hdegoede@...hat.com>

[ Upstream commit 1cf2aa665901054b140eb71748661ceae99b6b5a ]

Use the new IRQF_NO_AUTOEN flag when requesting the IRQ, rather then
disabling it immediately after requesting it.

This fixes a possible race where the IRQ might trigger between requesting
and disabling it; and this also leads to a small code cleanup.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Link: https://lore.kernel.org/r/20211003132255.31743-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/es8316.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c
index 067757d1d70a3..5fb02635c1406 100644
--- a/sound/soc/codecs/es8316.c
+++ b/sound/soc/codecs/es8316.c
@@ -811,12 +811,9 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client,
 	mutex_init(&es8316->lock);
 
 	ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq,
-					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+					IRQF_TRIGGER_HIGH | IRQF_ONESHOT | IRQF_NO_AUTOEN,
 					"es8316", es8316);
-	if (ret == 0) {
-		/* Gets re-enabled by es8316_set_jack() */
-		disable_irq(es8316->irq);
-	} else {
+	if (ret) {
 		dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret);
 		es8316->irq = -ENXIO;
 	}
-- 
2.33.0