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Groups > linux.kernel > #1222854

[PATCH] drivers: of: check input parameter name for __of_find_property

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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@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Grant Likely <grant.likely@linaro.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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Thread

[PATCH] drivers: of: check input parameter name for __of_find_property Peng Fan <van.freenix@gmail.com> - 2015-09-11 15:50 +0200
  Re: [PATCH] drivers: of: check input parameter name for  __of_find_property Rob Herring <robh@kernel.org> - 2015-09-15 18:00 +0200
    Re: [PATCH] drivers: of: check input parameter name for  __of_find_property Peng Fan <van.freenix@gmail.com> - 2015-09-16 02:20 +0200
      Re: [PATCH] drivers: of: check input parameter name for  __of_find_property Rob Herring <robh@kernel.org> - 2015-09-16 04:30 +0200
        Re: [PATCH] drivers: of: check input parameter name for  __of_find_property Peng Fan <van.freenix@gmail.com> - 2015-09-16 16:00 +0200

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