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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-14 14:50:58 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-14 14:50:58 -0700
commitfeea468014f0c2f930b149e83a9047da86b26e4e (patch)
tree29807205f471d63affd20e1e36fc3f832b55a106 /drivers/of/property.c
parentf24f27b85eadb6e6e7a68aa16c60a2d65789a02a (diff)
parentef954844c7ace62f773f4f23e28d2d915adc419f (diff)
downloadblackbird-obmc-linux-feea468014f0c2f930b149e83a9047da86b26e4e.tar.gz
blackbird-obmc-linux-feea468014f0c2f930b149e83a9047da86b26e4e.zip
Merge 4.13-rc5 into usb-next
This gets the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/of/property.c')
-rw-r--r--drivers/of/property.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c
index eda50b4be934..067f9fab7b77 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -708,6 +708,15 @@ struct device_node *of_graph_get_port_parent(struct device_node *node)
{
unsigned int depth;
+ if (!node)
+ return NULL;
+
+ /*
+ * Preserve usecount for passed in node as of_get_next_parent()
+ * will do of_node_put() on it.
+ */
+ of_node_get(node);
+
/* Walk 3 levels up only if there is 'ports' node. */
for (depth = 3; depth && node; depth--) {
node = of_get_next_parent(node);
@@ -728,12 +737,16 @@ EXPORT_SYMBOL(of_graph_get_port_parent);
struct device_node *of_graph_get_remote_port_parent(
const struct device_node *node)
{
- struct device_node *np;
+ struct device_node *np, *pp;
/* Get remote endpoint node. */
np = of_graph_get_remote_endpoint(node);
- return of_graph_get_port_parent(np);
+ pp = of_graph_get_port_parent(np);
+
+ of_node_put(np);
+
+ return pp;
}
EXPORT_SYMBOL(of_graph_get_remote_port_parent);
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