From: Mark Brown <broonie@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>,
linux-kernel@vger.kernel.org, Mark Brown <broonie@kernel.org>
Subject: [PATCH 1/2] regmap: irq: Free the regmap-irq mutex
Date: Thu, 31 Jul 2025 21:38:18 +0100 [thread overview]
Message-ID: <20250731-regmap-irq-nesting-v1-1-98b4d1bf20f0@kernel.org> (raw)
In-Reply-To: <20250731-regmap-irq-nesting-v1-0-98b4d1bf20f0@kernel.org>
We do not currently free the mutex allocated by regmap-irq, do so.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
drivers/base/regmap/regmap-irq.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index d1585f073776..4aac12d38215 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -816,7 +816,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
d->mask_buf[i],
chip->irq_drv_data);
if (ret)
- goto err_alloc;
+ goto err_mutex;
}
if (chip->mask_base && !chip->handle_mask_sync) {
@@ -827,7 +827,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (ret) {
dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
reg, ret);
- goto err_alloc;
+ goto err_mutex;
}
}
@@ -838,7 +838,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (ret) {
dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
reg, ret);
- goto err_alloc;
+ goto err_mutex;
}
}
@@ -855,7 +855,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (ret != 0) {
dev_err(map->dev, "Failed to read IRQ status: %d\n",
ret);
- goto err_alloc;
+ goto err_mutex;
}
}
@@ -879,7 +879,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (ret != 0) {
dev_err(map->dev, "Failed to ack 0x%x: %d\n",
reg, ret);
- goto err_alloc;
+ goto err_mutex;
}
}
}
@@ -901,7 +901,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (ret != 0) {
dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
reg, ret);
- goto err_alloc;
+ goto err_mutex;
}
}
}
@@ -910,7 +910,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
if (chip->status_is_level) {
ret = read_irq_data(d);
if (ret < 0)
- goto err_alloc;
+ goto err_mutex;
memcpy(d->prev_status_buf, d->status_buf,
array_size(d->chip->num_regs, sizeof(d->prev_status_buf[0])));
@@ -918,7 +918,7 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
ret = regmap_irq_create_domain(fwnode, irq_base, chip, d);
if (ret)
- goto err_alloc;
+ goto err_mutex;
ret = request_threaded_irq(irq, NULL, regmap_irq_thread,
irq_flags | IRQF_ONESHOT,
@@ -935,6 +935,8 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
err_domain:
/* Should really dispose of the domain but... */
+err_mutex:
+ mutex_destroy(&d->lock);
err_alloc:
kfree(d->type_buf);
kfree(d->type_buf_def);
@@ -1027,6 +1029,7 @@ void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *d)
kfree(d->config_buf[i]);
kfree(d->config_buf);
}
+ mutex_destroy(&d->lock);
kfree(d);
}
EXPORT_SYMBOL_GPL(regmap_del_irq_chip);
--
2.39.5
next prev parent reply other threads:[~2025-07-31 20:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-31 20:38 [PATCH 0/2] regmap: Fix lockdep warnings for nested regmap-irqs Mark Brown
2025-07-31 20:38 ` Mark Brown [this message]
2025-08-01 12:27 ` [PATCH 1/2] regmap: irq: Free the regmap-irq mutex Russell King (Oracle)
2025-08-01 12:29 ` Russell King (Oracle)
2025-07-31 20:38 ` [PATCH 2/2] regmap: irq: Avoid lockdep warnings with nested regmap-irq chips Mark Brown
2025-08-01 12:28 ` Russell King (Oracle)
2025-08-01 18:14 ` [PATCH 0/2] regmap: Fix lockdep warnings for nested regmap-irqs Mark Brown
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