[PATCH 5.15 308/511] leds: Fix BUG_ON check for LED_COLOR_ID_MULTI that is always false

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marek Behún <kabel@xxxxxxxxxx>

[ Upstream commit c3f853184bed04105682383c2971798c572226b5 ]

At the time we call
    BUG_ON(props.color == LED_COLOR_ID_MULTI);
the props variable is still initialized to zero.

Call the BUG_ON only after we parse fwnode into props.

Fixes: 77dce3a22e89 ("leds: disallow /sys/class/leds/*:multi:* for now")
Signed-off-by: Marek Behún <kabel@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230801151623.30387-1-kabel@xxxxxxxxxx
Signed-off-by: Lee Jones <lee@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/leds/led-core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index 4a97cb7457888..aad8bc44459fe 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -419,15 +419,15 @@ int led_compose_name(struct device *dev, struct led_init_data *init_data,
 	struct fwnode_handle *fwnode = init_data->fwnode;
 	const char *devicename = init_data->devicename;
 
-	/* We want to label LEDs that can produce full range of colors
-	 * as RGB, not multicolor */
-	BUG_ON(props.color == LED_COLOR_ID_MULTI);
-
 	if (!led_classdev_name)
 		return -EINVAL;
 
 	led_parse_fwnode_props(dev, fwnode, &props);
 
+	/* We want to label LEDs that can produce full range of colors
+	 * as RGB, not multicolor */
+	BUG_ON(props.color == LED_COLOR_ID_MULTI);
+
 	if (props.label) {
 		/*
 		 * If init_data.devicename is NULL, then it indicates that
-- 
2.40.1






[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux