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From: Lino Sanfilippo <l.sanfilippo@kunbus.com>
To: jarkko@kernel.org, peterhuewe@gmx.de
Cc: LinoSanfilippo@gmx.de, p.rosenberger@kunbus.com, lukas@wunner.de,
	jgg@ziepe.ca, linux-integrity@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Lino Sanfilippo <l.sanfilippo@kunbus.com>,
	stable@vger.kernel.org
Subject: [PATCH] tpm,tpm_tis: Avoid warning splat at shutdown
Date: Thu,  1 Feb 2024 12:36:45 +0100	[thread overview]
Message-ID: <20240201113646.31734-1-l.sanfilippo@kunbus.com> (raw)

If interrupts are not activated the work struct 'free_irq_work' is not
initialized. This results in a warning splat at module shutdown.

Fix this by always initializing the work regardless of whether interrupts
are activated or not.

cc: stable@vger.kernel.org
Fixes: 481c2d14627d ("tpm,tpm_tis: Disable interrupts after 1000 unhandled IRQs")
Reported-by: Jarkko Sakkinen <jarkko@kernel.org>
Closes: https://lore.kernel.org/all/CX32RFOMJUQ0.3R4YCL9MDCB96@kernel.org/
Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
---
 drivers/char/tpm/tpm_tis_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 1b350412d8a6..64c875657687 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -919,8 +919,6 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
 	int rc;
 	u32 int_status;
 
-	INIT_WORK(&priv->free_irq_work, tpm_tis_free_irq_func);
-
 	rc = devm_request_threaded_irq(chip->dev.parent, irq, NULL,
 				       tis_int_handler, IRQF_ONESHOT | flags,
 				       dev_name(&chip->dev), chip);
@@ -1132,6 +1130,7 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	priv->phy_ops = phy_ops;
 	priv->locality_count = 0;
 	mutex_init(&priv->locality_count_mutex);
+	INIT_WORK(&priv->free_irq_work, tpm_tis_free_irq_func);
 
 	dev_set_drvdata(&chip->dev, priv);
 

base-commit: 41bccc98fb7931d63d03f326a746ac4d429c1dd3
-- 
2.43.0


             reply	other threads:[~2024-02-01 11:37 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-01 11:36 Lino Sanfilippo [this message]
2024-02-01 16:40 ` [PATCH] tpm,tpm_tis: Avoid warning splat at shutdown Elliott, Robert (Servers)
2024-02-01 23:18   ` Jarkko Sakkinen
2024-02-02  1:13   ` Lino Sanfilippo
2024-02-01 23:03 ` Jarkko Sakkinen
2024-03-05 15:43 ` Paul Menzel
2024-03-07 20:05   ` Jarkko Sakkinen
2024-03-07 20:33     ` Paul Menzel

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