dm: treewide: Do not use the return value of simple uclass iterator

uclass_first_device/uclass_next_device return value will be removed,
don't use it.

With the current implementation dev is equivalent to !ret. It is
redundant to check both, ret check can be replaced with dev check, and
ret check inside the iteration is dead code.

Signed-off-by: Michal Suchanek <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

1 files changed, 3 insertions, 6 deletions

diff --git a/cmd/virtio.c b/cmd/virtio.c
index ec87d4f02c9..019e317e755 100644
--- a/cmd/virtio.c
+++ b/cmd/virtio.c
@@ -23,18 +23,15 @@ static int do_virtio(struct cmd_tbl *cmdtp, int flag, int argc,
 		 * device_probe() for children (i.e. virtio devices)
 		 */
 		struct udevice *bus, *child;
-		int ret;
 
-		ret = uclass_first_device(UCLASS_VIRTIO, &bus);
-		if (ret)
+		uclass_first_device(UCLASS_VIRTIO, &bus);
+		if (!bus)
 			return CMD_RET_FAILURE;
 
 		while (bus) {
 			device_foreach_child_probe(child, bus)
 				;
-			ret = uclass_next_device(&bus);
-			if (ret)
-				break;
+			uclass_next_device(&bus);
 		}
 
 		return CMD_RET_SUCCESS;