6.6-stable review patch. If anyone has any objections, please let me know.
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From: Javier Carrasco javier.carrasco.cruz@gmail.com
[ Upstream commit 6eefd65ba6ae29ab801f6461e59c10f93dd496f8 ]
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.
Signed-off-by: Javier Carrasco javier.carrasco.cruz@gmail.com Reviewed-by: Jonathan Cameron Jonathan.Cameron@huawei.com Link: https://lore.kernel.org/r/20240805-device_for_each_child_node-available-v3-2... Signed-off-by: Lee Jones lee@kernel.org Stable-dep-of: 82c5ada1f9d0 ("leds: pca995x: Fix device child node usage in pca995x_probe()") Signed-off-by: Sasha Levin sashal@kernel.org --- 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 686b77772ccec..83bc9669544c3 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;