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Message-ID: <1340945879-11712-2-git-send-email-acourbot@nvidia.com>
Date:	Fri, 29 Jun 2012 13:57:58 +0900
From:	Alexandre Courbot <acourbot@...dia.com>
To:	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Linus Walleij <linus.walleij@...ricsson.com>
CC:	<linux-kernel@...r.kernel.org>,
	<devicetree-discuss@...ts.ozlabs.org>,
	Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH 1/2] 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@...dia.com>
---
 drivers/of/base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 7acd785..93165b7a 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 */
-- 
1.7.11.1

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