[PATCH] base: dd: don't remove driver_data in -EPROBE_DEFER case

[Yi Zhang]

the driver_data may be used for sanity check, it fails the
probe() if driver_data is NULL after it is re-triggered.
for example, soc_probe() in sound/soc/soc-core.c

Signed-off-by: Yi Zhang <yizhang_hust@xxxxxxx>
---
 drivers/base/dd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index c4da2df..30c53d3 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -402,7 +402,8 @@ pinctrl_bind_failed:
 	devres_release_all(dev);
 	driver_sysfs_remove(dev);
 	dev->driver = NULL;
-	dev_set_drvdata(dev, NULL);
+	if (ret != -EPROBE_DEFER)
+		dev_set_drvdata(dev, NULL);
 	if (dev->pm_domain && dev->pm_domain->dismiss)
 		dev->pm_domain->dismiss(dev);
 	pm_runtime_reinit(dev);
-- 
1.9.1