From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
linux-gpio@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Hans de Goede <hdegoede@redhat.com>
Subject: [PATCH v7 11/18] gpiolib: acpi: Move non-critical code outside of critical section
Date: Thu, 12 Nov 2020 00:20:01 +0200 [thread overview]
Message-ID: <20201111222008.39993-12-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20201111222008.39993-1-andriy.shevchenko@linux.intel.com>
Mika noticed that some code is run under mutex when it doesn't require
the lock, like an error code assignment.
Move non-critical code outside of critical section.
Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/gpio/gpiolib-acpi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index a9254de964cc..b00171d2aaf5 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -1063,8 +1063,8 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
GPIO_ACTIVE_HIGH,
flags);
if (IS_ERR(desc)) {
- status = AE_ERROR;
mutex_unlock(&achip->conn_lock);
+ status = AE_ERROR;
goto out;
}
@@ -1078,9 +1078,9 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
conn = kzalloc(sizeof(*conn), GFP_KERNEL);
if (!conn) {
- status = AE_NO_MEMORY;
gpiochip_free_own_desc(desc);
mutex_unlock(&achip->conn_lock);
+ status = AE_NO_MEMORY;
goto out;
}
--
2.28.0
next prev parent reply other threads:[~2020-11-11 22:20 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 22:19 [PATCH v7 00/18] gpiolib: acpi: pin configuration fixes Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 01/18] gpiolib: Replace unsigned by unsigned int Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 02/18] gpiolib: add missed break statement Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 03/18] gpiolib: use proper API to pack pin configuration parameters Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 04/18] gpiolib: Extract gpio_set_config_with_argument() for future use Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 05/18] gpiolib: move bias related code from gpio_set_config() to gpio_set_bias() Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 06/18] gpiolib: Extract gpio_set_config_with_argument_optional() helper Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 07/18] gpiolib: Introduce gpio_set_debounce_timeout() for internal use Andy Shevchenko
2020-11-12 8:16 ` Mika Westerberg
2020-11-12 10:19 ` Andy Shevchenko
2020-11-12 11:06 ` Mika Westerberg
2020-11-12 11:12 ` Hans de Goede
2020-11-12 12:08 ` Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 08/18] gpiolib: acpi: Respect bias settings for GpioInt() resource Andy Shevchenko
2020-11-11 22:19 ` [PATCH v7 09/18] gpiolib: acpi: Use named item for enum gpiod_flags variable Andy Shevchenko
2020-11-11 22:20 ` [PATCH v7 10/18] gpiolib: acpi: Take into account debounce settings Andy Shevchenko
2020-11-11 22:20 ` Andy Shevchenko [this message]
2020-11-12 8:17 ` [PATCH v7 11/18] gpiolib: acpi: Move non-critical code outside of critical section Mika Westerberg
2020-11-11 22:20 ` [PATCH v7 12/18] gpiolib: acpi: Move acpi_gpio_to_gpiod_flags() upper in the code Andy Shevchenko
2020-11-11 22:20 ` [PATCH v7 13/18] gpiolib: acpi: Set initial value for output pin based on bias and polarity Andy Shevchenko
2020-11-12 9:10 ` Mika Westerberg
2020-11-11 22:20 ` [PATCH v7 14/18] gpiolib: acpi: Make acpi_gpio_to_gpiod_flags() usable for GpioInt() Andy Shevchenko
2020-11-11 22:20 ` [PATCH v7 15/18] gpiolib: acpi: Extract acpi_request_own_gpiod() helper Andy Shevchenko
2020-11-11 22:20 ` [PATCH v7 16/18] gpiolib: acpi: Convert pin_index to be u16 Andy Shevchenko
2020-11-11 22:20 ` [PATCH v7 17/18] gpiolib: acpi: Use BIT() macro to increase readability Andy Shevchenko
2020-11-11 22:20 ` [PATCH v7 18/18] gpiolib: acpi: Make Intel GPIO tree official for GPIO ACPI work Andy Shevchenko
2020-11-12 10:24 ` [PATCH v7 00/18] gpiolib: acpi: pin configuration fixes Andy Shevchenko
2020-11-12 14:16 ` Andy Shevchenko
2020-11-15 16:04 ` Linus Walleij
2020-11-16 9:48 ` Andy Shevchenko
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