of_match_node checks for compatiblity between a set of matches and a
node. Neither the matches nor node pointer are checked for validity.
This adds the required checks to of_match_node.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
---
Cc: barebox@xxxxxxxxxxxxxxxxxxx
---
drivers/of/base.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 4241e65..ab0f4cd 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -321,6 +321,9 @@ EXPORT_SYMBOL(of_device_is_compatible);
const struct of_device_id *of_match_node(const struct of_device_id *matches,
const struct device_node *node)
{
+ if (!matches || !node)
+ return NULL;
+
while (matches->compatible) {
if (of_device_is_compatible(node, matches->compatible) == 1)
return matches;
--
1.7.2.5
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