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authorHui Wang <hui.wang@canonical.com>2022-12-20 15:33:35 +0800
committerLee Jones <lee@kernel.org>2023-01-30 08:00:51 +0000
commitd8960dfb9d6dd940265cd48d7de6ad7060aa6963 (patch)
tree72da0b2961b5ce56615c34ea76efceb285369ade /drivers/leds
parentabc3100fcba6827444ef4bdb17065ac3b6619dff (diff)
leds: pwm: Clear the led structure before parsing each child node
I defined 2 leds in the device tree, in the 1st led node, the max-brightness is set to 248, while in the 2nd led node, I mis-spelled the max-brightness to max-brighttness, but the driver is still able to get the max-brightness 248 for the 2nd node, that is because the led structure is not cleared before parsing each child node. pwmleds { compatible = "pwm-leds"; pwm-green { ... max-brightness = <248>; }; pwm-red { ... max-brighttness = <128>; }; Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221220073335.393489-1-hui.wang@canonical.com
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-pwm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 6832180c1c54..29194cc382af 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -138,9 +138,9 @@ static int led_pwm_create_fwnode(struct device *dev, struct led_pwm_priv *priv)
struct led_pwm led;
int ret;
- memset(&led, 0, sizeof(led));
-
device_for_each_child_node(dev, fwnode) {
+ memset(&led, 0, sizeof(led));
+
ret = fwnode_property_read_string(fwnode, "label", &led.name);
if (ret && is_of_node(fwnode))
led.name = to_of_node(fwnode)->name;