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| author | Dan Williams <dan.j.williams@intel.com> | 2017-08-31 16:25:59 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-08-31 16:25:59 -0700 |
| commit | 8f98ae0c9b90bb46097e4f28e81e9ae6148e5694 (patch) | |
| tree | c1d0f0d9b0733bf3271780e45d7a1c299fe2fc48 /drivers/of/property.c | |
| parent | 58738c495e15badd2015e19ff41f1f1ed55200bc (diff) | |
| parent | 5e405595e5bf4c09fab9ca1e7dbe5b62872757b5 (diff) | |
| download | linux-8f98ae0c9b90bb46097e4f28e81e9ae6148e5694.tar.gz | |
Merge branch 'for-4.14/fs' into libnvdimm-for-next
Diffstat (limited to 'drivers/of/property.c')
| -rw-r--r-- | drivers/of/property.c | 17 |
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); |