linux-kernel - [PATCH] drivers: of: check input parameter name for __of_find

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Message-Id: <1441979043-19694-1-git-send-email-van.freenix@gmail.com>
Date:	Fri, 11 Sep 2015 21:44:03 +0800
From:	Peng Fan <van.freenix@...il.com>
To:	robh+dt@...nel.org
Cc:	devicetree@...r.kernel.org, van.freenix@...il.com,
	linux-kernel@...r.kernel.org,
	Frank Rowand <frowand.list@...il.com>,
	Grant Likely <grant.likely@...aro.org>
Subject: [PATCH] drivers: of: check input parameter name for __of_find_property

Check input parameter 'name' for __of_find_property. If name is NULL,
of_prop_cmp->strcasecmp may trigger panic.

Signed-off-by: Peng Fan <van.freenix@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Frank Rowand <frowand.list@...il.com>
Cc: Grant Likely <grant.likely@...aro.org>
---
 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 8b5a187..e41436d 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -215,7 +215,7 @@ static struct property *__of_find_property(const struct device_node *np,
 {
 	struct property *pp;
 
-	if (!np)
+	if (!np || !name)
 		return NULL;
 
 	for (pp = np->properties; pp; pp = pp->next) {
-- 
1.8.4

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