From f6abd5389ceab5fce185126c2364a324465fafbe Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Wed, 24 Oct 2018 14:10:15 +0200 Subject: dm: uclass: Add uclass_next_device_err() to return a valid device Similarly to uclass_first_device_err(), add uclass_next_device_err() which returns an error if there are no next devices in that uclass. Signed-off-by: Patrice Chotard Reviewed-by: Simon Glass --- drivers/core/uclass.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/core/uclass.c') diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index 6cfcde8918c..d9c5719a878 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -562,6 +562,19 @@ int uclass_next_device(struct udevice **devp) return uclass_get_device_tail(dev, ret, devp); } +int uclass_next_device_err(struct udevice **devp) +{ + int ret; + + ret = uclass_next_device(devp); + if (ret) + return ret; + else if (!*devp) + return -ENODEV; + + return 0; +} + int uclass_first_device_check(enum uclass_id id, struct udevice **devp) { int ret; -- cgit v1.2.3