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[2a02:8389:41cf:e200:2243:8f1c:2a7e:ca73]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a93c2775c22sm283707466b.20.2024.09.28.12.47.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Sep 2024 12:47:43 -0700 (PDT) From: Javier Carrasco Date: Sat, 28 Sep 2024 21:47:37 +0200 Subject: [PATCH 3/3] gpio: acpi: switch to device_for_each_child_node_scoped() Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240928-gpio_device_for_each_child_node_scoped-v1-3-c20eff315f4f@gmail.com> References: <20240928-gpio_device_for_each_child_node_scoped-v1-0-c20eff315f4f@gmail.com> In-Reply-To: <20240928-gpio_device_for_each_child_node_scoped-v1-0-c20eff315f4f@gmail.com> To: Hoan Tran , Serge Semin , Linus Walleij , Bartosz Golaszewski , Mika Westerberg , Andy Shevchenko Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Javier Carrasco X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1727552857; l=1319; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=OmSLqQKAb/QVwFN4C7eKhQPVnPYgmYpfMCMk1y2cALQ=; b=eOSvEiYIr9MxSawrD21/c/lnXe8QWnJQBkoIprV+FI1oauBP+WU4gbv9Hmjc7olsJlQadDQEB S+NLzUpfVpSDtsni7kcxNDp/2MgJhtuDG9m4jl5nQ/Qvsoup86C5A4m X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= Switch to device_for_each_child_node_scoped() to simplify the code by removing the need for a call to fwnode_handle_put() in the error path. This also prevents possible memory leaks if new error paths are added without the required call to fwnode_handle_put(). Signed-off-by: Javier Carrasco --- drivers/gpio/gpiolib-acpi.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 78ecd56123a3..1f9fe50bba00 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1315,9 +1315,8 @@ acpi_gpiochip_parse_own_gpio(struct acpi_gpio_chip *achip, static void acpi_gpiochip_scan_gpios(struct acpi_gpio_chip *achip) { struct gpio_chip *chip = achip->chip; - struct fwnode_handle *fwnode; - device_for_each_child_node(chip->parent, fwnode) { + device_for_each_child_node_scoped(chip->parent, fwnode) { unsigned long lflags; enum gpiod_flags dflags; struct gpio_desc *desc; @@ -1335,7 +1334,6 @@ static void acpi_gpiochip_scan_gpios(struct acpi_gpio_chip *achip) ret = gpiod_hog(desc, name, lflags, dflags); if (ret) { dev_err(chip->parent, "Failed to hog GPIO\n"); - fwnode_handle_put(fwnode); return; } }