linux-kernel - [PATCH] sound: soc: codecs: wcd9335: add irqflag IRQF

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Message-ID: <20190704191026.GA20732@hari-Inspiron-1545>
Date:   Fri, 5 Jul 2019 00:40:26 +0530
From:   Hariprasad Kelam <hariprasad.kelam@...il.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Vinod Koul <vkoul@...nel.org>,
        Hariprasad Kelam <hariprasad.kelam@...il.com>,
        Gen Zhang <blackgod016574@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] sound: soc: codecs: wcd9335: add irqflag IRQF_ONESHOT flag

Add IRQF_ONESHOT to ensure "Interrupt is not reenabled after the hardirq
handler finished".

fixes below issue reported by coccicheck

sound/soc/codecs/wcd9335.c:4068:8-33: ERROR: Threaded IRQ with no
primary handler requested without IRQF_ONESHOT

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@...il.com>
---
 sound/soc/codecs/wcd9335.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wcd9335.c b/sound/soc/codecs/wcd9335.c
index 85737fe..7ab9bf6f 100644
--- a/sound/soc/codecs/wcd9335.c
+++ b/sound/soc/codecs/wcd9335.c
@@ -4056,6 +4056,9 @@ static struct wcd9335_irq wcd9335_irqs[] = {
 static int wcd9335_setup_irqs(struct wcd9335_codec *wcd)
 {
 	int irq, ret, i;
+	unsigned long irqflags;
+
+	irqflags = IRQF_TRIGGER_RISING | IRQF_ONESHOT;
 
 	for (i = 0; i < ARRAY_SIZE(wcd9335_irqs); i++) {
 		irq = regmap_irq_get_virq(wcd->irq_data, wcd9335_irqs[i].irq);
@@ -4067,7 +4070,7 @@ static int wcd9335_setup_irqs(struct wcd9335_codec *wcd)
 
 		ret = devm_request_threaded_irq(wcd->dev, irq, NULL,
 						wcd9335_irqs[i].handler,
-						IRQF_TRIGGER_RISING,
+						irqflags,
 						wcd9335_irqs[i].name, wcd);
 		if (ret) {
 			dev_err(wcd->dev, "Failed to request %s\n",
-- 
2.7.4