[PATCH] leds: blinkm: Remove sysfs group on allocation failure

[Myeonghun Pak]

register_multicolor() returns on allocation failure without removing the
sysfs group created by blinkm_probe(). Remove it on this path, matching
the helper's existing LED registration error cleanup.

This issue was identified during our ongoing static-analysis research
while reviewing kernel code.

Fixes: 56e8c56c9af0 ("leds: Add multicolor support to BlinkM LED driver")
Cc: stable@xxxxxxxxxxxxxxx
Assisted-by: LLM
Co-developed-by: Ijae Kim <ae878000@xxxxxxxxx>
Signed-off-by: Ijae Kim <ae878000@xxxxxxxxx>
Signed-off-by: Myeonghun Pak <mhun512@xxxxxxxxx>
---
 drivers/leds/leds-blinkm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -691,8 +691,10 @@ static int register_multicolor(struct i2c_client *client, struct blinkm_data *da
 
 	mc_led_info = devm_kcalloc(&client->dev, NUM_LEDS, sizeof(*mc_led_info),
 					GFP_KERNEL);
-	if (!mc_led_info)
+	if (!mc_led_info) {
+		sysfs_remove_group(&client->dev.kobj, &blinkm_group);
 		return -ENOMEM;
+	}
 
 	mc_led_info[RED].color_index = LED_COLOR_ID_RED;
 	mc_led_info[GREEN].color_index = LED_COLOR_ID_GREEN;