[PATCH v2 07/37] dm: core: Skip adding uclasses with OF_PLATDATA_INST

Simon Glass sjg at chromium.org
Wed Feb 3 17:43:23 CET 2021


There is no need to ever add new uclasses since these are set up at build
time. Update the code to return an error if this is attempted.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 drivers/core/uclass.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index f38122d54b5..2a7b0881b18 100644
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -147,8 +147,11 @@ int uclass_get(enum uclass_id id, struct uclass **ucp)
 
 	*ucp = NULL;
 	uc = uclass_find(id);
-	if (!uc)
+	if (!uc) {
+		if (CONFIG_IS_ENABLED(OF_PLATDATA_INST))
+			return -ENOENT;
 		return uclass_add(id, ucp);
+	}
 	*ucp = uc;
 
 	return 0;
-- 
2.30.0.365.g02bc693789-goog



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