From a52f07ecd143baee51623b063be5007585748a4f Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Fri, 18 Mar 2011 10:21:29 -0600 Subject: [PATCH] dt: protect against NULL matches passed to of_match_node() There are a few use cases where it is convenient to pass NULL to of_match_node() and have it fail gracefully. The patch adds a null check to the beginning so taht it does so. Signed-off-by: Grant Likely --- drivers/of/base.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index 710b53bfac6d..632ebae7f17a 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -496,6 +496,9 @@ EXPORT_SYMBOL(of_find_node_with_property); const struct of_device_id *of_match_node(const struct of_device_id *matches, const struct device_node *node) { + if (!matches) + return NULL; + while (matches->name[0] || matches->type[0] || matches->compatible[0]) { int match = 1; if (matches->name[0])