[RFC PATCH v3 07/18] ledtrig-blkdev: Add function to initialize gendisk ledtrig member
From: Ian Pilcher <hidden>
Date: 2021-08-19 02:51:27
Also in:
linux-block, linux-leds, lkml
Subsystem:
led subsystem, the rest · Maintainers:
Lee Jones, Pavel Machek, Linus Torvalds
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 <redacted> --- 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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