| Message ID | 20221121014200.3560742-1-yangyingliang@huawei.com |
|---|---|
| State | Accepted |
| Commit | 60d865bd5a9b15a3961eb1c08bd4155682a3c81e |
| Headers | show |
| Series | [v2] of: property: decrement node refcount in of_fwnode_get_reference_args() | expand |
diff --git a/drivers/of/property.c b/drivers/of/property.c index 967f79b59016..134cfc980b70 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -993,8 +993,10 @@ of_fwnode_get_reference_args(const struct fwnode_handle *fwnode, nargs, index, &of_args); if (ret < 0) return ret; - if (!args) + if (!args) { + of_node_put(of_args.np); return 0; + } args->nargs = of_args.args_count; args->fwnode = of_fwnode_handle(of_args.np);
I got the the following report: OF: ERROR: memory leak, expected refcount 1 instead of 4, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@34/adc In of_fwnode_get_reference_args(), the refcount of of_args.np has been incremented in the case of successful return from of_parse_phandle_with_args() or of_parse_phandle_with_fixed_args(). Decrement the refcount if of_args is not returned to the caller of of_fwnode_get_reference_args(). Fixes: 3e3119d3088f ("device property: Introduce fwnode_property_get_reference_args") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Frank Rowand <frowand.list@gmail.com> --- v1 -> v2: Update title and commit message that suggested by Frank. --- drivers/of/property.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)