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[91.118.163.37]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5b83b82f308sm5004088a12.63.2024.08.05.07.50.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Aug 2024 07:50:12 -0700 (PDT) From: Javier Carrasco Date: Mon, 05 Aug 2024 16:49:45 +0200 Subject: [PATCH v3 2/4] leds: pca995x: use device_for_each_child_node() to access device child nodes Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240805-device_for_each_child_node-available-v3-2-48243a4aa5c0@gmail.com> References: <20240805-device_for_each_child_node-available-v3-0-48243a4aa5c0@gmail.com> In-Reply-To: <20240805-device_for_each_child_node-available-v3-0-48243a4aa5c0@gmail.com> To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Andy Shevchenko , Jonathan Cameron , Rob Herring , Daniel Scally , Heikki Krogerus , Sakari Ailus , Jean Delvare , Guenter Roeck , Pavel Machek , Lee Jones , Marcin Wojtas , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andreas Kemnade Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-leds@vger.kernel.org, netdev@vger.kernel.org, Javier Carrasco , Jonathan Cameron X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1722869407; l=2071; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=7kg2DOJCEtgdPsOeKLV9ms+2/ZVz5OINInC7YD7FABM=; b=q5g6nykQ9OaDuAHv+zzIBfQXn8CygcT99X05g7rWy9/EpjkKbyLBSp7nJFERHp6rR3EtacTMH z8x4MVdmX6ABlGoPSEQDPikyNvrFcUxmYotzJ9Wy3xm20DRxXgIrk0z X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= The iterated nodes are direct children of the device node, and the `device_for_each_child_node()` macro accounts for child node availability. `fwnode_for_each_available_child_node()` is meant to access the child nodes of an fwnode, and therefore not direct child nodes of the device node. Use `device_for_each_child_node()` to indicate device's direct child nodes. Reviewed-by: Jonathan Cameron Signed-off-by: Javier Carrasco --- drivers/leds/leds-pca995x.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/drivers/leds/leds-pca995x.c b/drivers/leds/leds-pca995x.c index 686b77772cce..83bc9669544c 100644 --- a/drivers/leds/leds-pca995x.c +++ b/drivers/leds/leds-pca995x.c @@ -120,7 +120,7 @@ static const struct regmap_config pca995x_regmap = { static int pca995x_probe(struct i2c_client *client) { struct fwnode_handle *led_fwnodes[PCA995X_MAX_OUTPUTS] = { 0 }; - struct fwnode_handle *np, *child; + struct fwnode_handle *child; struct device *dev = &client->dev; const struct pca995x_chipdef *chipdef; struct pca995x_chip *chip; @@ -129,8 +129,7 @@ static int pca995x_probe(struct i2c_client *client) chipdef = device_get_match_data(&client->dev); - np = dev_fwnode(dev); - if (!np) + if (!dev_fwnode(dev)) return -ENODEV; chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL); @@ -144,17 +143,13 @@ static int pca995x_probe(struct i2c_client *client) i2c_set_clientdata(client, chip); - fwnode_for_each_available_child_node(np, child) { + device_for_each_child_node(dev, child) { ret = fwnode_property_read_u32(child, "reg", ®); - if (ret) { - fwnode_handle_put(child); + if (ret) return ret; - } - if (reg < 0 || reg >= PCA995X_MAX_OUTPUTS || led_fwnodes[reg]) { - fwnode_handle_put(child); + if (reg < 0 || reg >= PCA995X_MAX_OUTPUTS || led_fwnodes[reg]) return -EINVAL; - } led = &chip->leds[reg]; led_fwnodes[reg] = child;