[PATCH] media: lirc: Fix error handling in lirc_register()

[Ma Ke]

When cdev_device_add() failed, calling put_device() to explicitly
release dev->lirc_dev. Otherwise, it could cause the fault of the
reference count.

Found by code review.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: a6ddd4fecbb0 ("media: lirc: remove last remnants of lirc kapi")
Signed-off-by: Ma Ke <make24@xxxxxxxxxxx>
---
 drivers/media/rc/lirc_dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c
index a2257dc2f25d..ed839e15fa16 100644
--- a/drivers/media/rc/lirc_dev.c
+++ b/drivers/media/rc/lirc_dev.c
@@ -765,6 +765,7 @@ int lirc_register(struct rc_dev *dev)
 	return 0;
 
 out_ida:
+	put_device(&dev->lirc_dev);
 	ida_free(&lirc_ida, minor);
 	return err;
 }
-- 
2.25.1