[U-Boot] [PATCH v3 2/4] dm: core: Test dev->flags after device_probe() in device_probe_child()

[Bin Meng]

The device might have already been probed during the call to
device_probe() on its parent device (e.g. PCI bridge devices).
Test the flags again so that we don't mess up the device.

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---

Changes in v3: None

 drivers/core/device.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/core/device.c b/drivers/core/device.c
index e23a872..7a62812 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -266,6 +266,14 @@ int device_probe_child(struct udevice *dev, void *parent_priv)
 			goto fail;
 	}
 
+	/*
+	 * The device might have already been probed during the call to
+	 * device_probe() on its parent device (e.g. PCI bridge devices).
+	 * Test the flags again so that we don't mess up the device.
+	 */
+	if (dev->flags & DM_FLAG_ACTIVATED)
+		return 0;
+
 	seq = uclass_resolve_seq(dev);
 	if (seq < 0) {
 		ret = seq;
-- 
1.8.2.1