linux-kernel - [PATCH 1/2] pinctrl: cy8c95x0: Use cleanup.h

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Message-ID: <20240626084525.787298-1-patrick.rudolph@9elements.com>
Date: Wed, 26 Jun 2024 10:45:22 +0200
From: Patrick Rudolph <patrick.rudolph@...ements.com>
To: Patrick Rudolph <patrick.rudolph@...ements.com>,
	Linus Walleij <linus.walleij@...aro.org>
Cc: naresh.solanki@...ements.com,
	andy.shevchenko@...il.com,
	broonie@...nel.org,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] pinctrl: cy8c95x0: Use cleanup.h

Use the guard mutex from cleanup.h to make the code more readable.

Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
---
 drivers/pinctrl/pinctrl-cy8c95x0.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-cy8c95x0.c b/drivers/pinctrl/pinctrl-cy8c95x0.c
index 4efb8b5cc2d3..781949e0e09e 100644
--- a/drivers/pinctrl/pinctrl-cy8c95x0.c
+++ b/drivers/pinctrl/pinctrl-cy8c95x0.c
@@ -9,6 +9,7 @@
 
 #include <linux/acpi.h>
 #include <linux/bitmap.h>
+#include <linux/cleanup.h>
 #include <linux/dmi.h>
 #include <linux/gpio/driver.h>
 #include <linux/gpio/consumer.h>
@@ -480,8 +481,6 @@ static inline int cy8c95x0_regmap_update_bits_base(struct cy8c95x0_pinctrl *chip
 	if (reg == CY8C95X0_PORTSEL)
 		return -EINVAL;
 
-	mutex_lock(&chip->i2c_lock);
-
 	/* Registers behind the PORTSEL mux have their own range in regmap */
 	if (cy8c95x0_muxed_register(reg)) {
 		off = CY8C95X0_MUX_REGMAP_TO_OFFSET(reg, port);
@@ -492,10 +491,11 @@ static inline int cy8c95x0_regmap_update_bits_base(struct cy8c95x0_pinctrl *chip
 		else
 			off = reg;
 	}
+	guard(mutex)(&chip->i2c_lock);
 
 	ret = regmap_update_bits_base(chip->regmap, off, mask, val, change, async, force);
 	if (ret < 0)
-		goto out;
+		return ret;
 
 	/* Update the cache when a WC bit is written */
 	if (cy8c95x0_wc_register(reg) && (mask & val)) {
@@ -516,8 +516,6 @@ static inline int cy8c95x0_regmap_update_bits_base(struct cy8c95x0_pinctrl *chip
 			regcache_cache_only(chip->regmap, false);
 		}
 	}
-out:
-	mutex_unlock(&chip->i2c_lock);
 
 	return ret;
 }
@@ -591,8 +589,6 @@ static int cy8c95x0_regmap_read(struct cy8c95x0_pinctrl *chip, unsigned int reg,
 {
 	int off, ret;
 
-	mutex_lock(&chip->i2c_lock);
-
 	/* Registers behind the PORTSEL mux have their own range in regmap */
 	if (cy8c95x0_muxed_register(reg)) {
 		off = CY8C95X0_MUX_REGMAP_TO_OFFSET(reg, port);
@@ -603,11 +599,10 @@ static int cy8c95x0_regmap_read(struct cy8c95x0_pinctrl *chip, unsigned int reg,
 		else
 			off = reg;
 	}
+	guard(mutex)(&chip->i2c_lock);
 
 	ret = regmap_read(chip->regmap, off, read_val);
 
-	mutex_unlock(&chip->i2c_lock);
-
 	return ret;
 }
 
-- 
2.44.0