Remove all device links from this LED
Remove /sys/class/leds/<led>/block_devices directory
Free per-LED data structure
Decrement module reference count
Signed-off-by: Ian Pilcher <arequipeno@xxxxxxxxx>
---
drivers/leds/trigger/ledtrig-blkdev.c | 28 +++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/leds/trigger/ledtrig-blkdev.c b/drivers/leds/trigger/ledtrig-blkdev.c
index fff67ebd28f2..c7e101935bf6 100644
--- a/drivers/leds/trigger/ledtrig-blkdev.c
+++ b/drivers/leds/trigger/ledtrig-blkdev.c
@@ -435,6 +435,33 @@ static ssize_t unlink_device_store(struct device *const dev,
static DEVICE_ATTR_WO(unlink_device);
+/*
+ *
+ * Disassociate an LED from the trigger
+ *
+ */
+
+static void blkdev_deactivate(struct led_classdev *const led_dev)
+{
+ struct ledtrig_blkdev_led *const led = led_get_trigger_data(led_dev);
+ struct ledtrig_blkdev_link *link;
+ struct hlist_node *next;
+
+ mutex_lock(&ledtrig_blkdev_mutex);
+
+ hlist_for_each_entry_safe(link, next, &led->disks, led_disks_node)
+ blkdev_disk_unlink_locked(led, link, link->disk);
+
+ hlist_del(&led->leds_node);
+ kobject_put(led->dir);
+ kfree(led);
+
+ mutex_unlock(&ledtrig_blkdev_mutex);
+
+ module_put(THIS_MODULE);
+}
+
+
/*
*
* Initialization - register the trigger
@@ -459,5 +486,6 @@ static const struct attribute_group *ledtrig_blkdev_attr_groups[] = {
struct led_trigger ledtrig_blkdev_trigger = {
.name = "blkdev",
.activate = blkdev_activate,
+ .deactivate = blkdev_deactivate,
.groups = ledtrig_blkdev_attr_groups,
};
--
2.31.1
