[PATCH 3/3] of_path: handle no driver for device
Sascha Hauer
s.hauer at pengutronix.de
Thu Oct 20 00:31:22 PDT 2016
in __of_find_path it can happen that there is a device, but there
is no driver for this device because it hasn't been probed yet.
Return -ENODEV in this case to let the caller know that it has to
try later again.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/of/of_path.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/of/of_path.c b/drivers/of/of_path.c
index 8e1931f..12a7c02 100644
--- a/drivers/of/of_path.c
+++ b/drivers/of/of_path.c
@@ -61,6 +61,9 @@ static int __of_find_path(struct device_node *node, const char *part, char **out
return -ENODEV;
}
+ if (!dev->driver)
+ return -ENODEV;
+
device_detect(dev);
if (part)
--
2.9.3
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