Ensures that gendisk ledtrig member is initialized to NULL, in case the
structure was not allocated with kzalloc() or equivalent
Signed-off-by: Ian Pilcher <arequip...@gmail.com>
---
include/linux/leds.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 329fd914cf24..6b67650d8797 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -10,6 +10,7 @@
#include <dt-bindings/leds/common.h>
#include <linux/device.h>
+#include <linux/genhd.h>
#include <linux/kernfs.h>
#include <linux/list.h>
#include <linux/mutex.h>
@@ -599,4 +600,19 @@ static inline void ledtrig_audio_set(enum led_audio type,
}
#endif
+#ifdef CONFIG_LEDS_TRIGGER_BLKDEV
+/**
+ * ledtrig_blkdev_disk_init - initialize the ledtrig field of a new gendisk
+ * @gd: the gendisk to be initialized
+ */
+static inline void ledtrig_blkdev_disk_init(struct gendisk *const gd)
+{
+ gd->ledtrig = NULL;
+}
+#else /* CONFIG_LEDS_TRIGGER_BLKDEV */
+static inline void ledtrig_blkdev_disk_init(const struct gendisk *gd)
+{
+}
+#endif /* CONFIG_LEDS_TRIGGER_BLKDEV */
+
#endif /* __LINUX_LEDS_H_INCLUDED */
--
2.31.1
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