[U-Boot] [PATCH v2 16/29] dm: Avoid activating devices in 'dm uclass' command

[Simon Glass]

This command currently activates devices as it lists them. This is not
desirable since it changes the system state. Fix it and avoid printing
a newline if there are no devices in a uclass.

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

Changes in v2: None

 test/dm/cmd_dm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/dm/cmd_dm.c b/test/dm/cmd_dm.c
index 9b77a7f..93e5255 100644
--- a/test/dm/cmd_dm.c
+++ b/test/dm/cmd_dm.c
@@ -94,9 +94,9 @@ static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
 			continue;
 
 		printf("uclass %d: %s\n", id, uc->uc_drv->name);
-		for (ret = uclass_first_device(id, &dev);
-		     dev;
-		     ret = uclass_next_device(&dev)) {
+		if (list_empty(&uc->dev_head))
+			continue;
+		list_for_each_entry(dev, &uc->dev_head, uclass_node) {
 			dm_display_line(dev, "");
 		}
 		puts("\n");
-- 
2.0.0.526.g5318336