From: Alexandre Courbot <acourbot@nvidia.com>
Date: Fri, 29 Jun 2012 04:57:58 +0000 (+0900)
Subject: of: return -ENOENT when no property
X-Git-Tag: next-20120724~35^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1af4c7f18a442771d86d496c761e9816349f98c9;p=karo-tx-linux.git

of: return -ENOENT when no property

Make of_parse_phandle_with_args return -ENOENT instead of -EINVAL when
no matching property is found, which allows to discriminate between
absence of property and parsing error.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---

diff --git a/drivers/of/base.c b/drivers/of/base.c
index ddba57799fd7..85757952f12d 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -902,7 +902,7 @@ int of_parse_phandle_with_args(struct device_node *np, const char *list_name,
 	/* Retrieve the phandle list property */
 	list = of_get_property(np, list_name, &size);
 	if (!list)
-		return -EINVAL;
+		return -ENOENT;
 	list_end = list + size / sizeof(*list);
 
 	/* Loop over the phandles until all the requested entry is found */