6.6-stable review patch. If anyone has any objections, please let me know.
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From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit d029edefed39647c797c2710aedd9d31f84c069e ]
The documentation for device_get_named_child_node() mentions this important point:
" The caller is responsible for calling fwnode_handle_put() on the returned fwnode pointer. "
Add fwnode_handle_put() to avoid leaked references.
Fixes: 1e264f9d2918 ("net: dsa: qca8k: add LEDs basic support") Reviewed-by: Simon Horman horms@kernel.org Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/dsa/qca/qca8k-leds.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/dsa/qca/qca8k-leds.c b/drivers/net/dsa/qca/qca8k-leds.c index e8c16e76e34bb..77a79c2494022 100644 --- a/drivers/net/dsa/qca/qca8k-leds.c +++ b/drivers/net/dsa/qca/qca8k-leds.c @@ -431,8 +431,11 @@ qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int p init_data.devname_mandatory = true; init_data.devicename = kasprintf(GFP_KERNEL, "%s:0%d", ds->slave_mii_bus->id, port_num); - if (!init_data.devicename) + if (!init_data.devicename) { + fwnode_handle_put(led); + fwnode_handle_put(leds); return -ENOMEM; + }
ret = devm_led_classdev_register_ext(priv->dev, &port_led->cdev, &init_data); if (ret) @@ -441,6 +444,7 @@ qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int p kfree(init_data.devicename); }
+ fwnode_handle_put(leds); return 0; }
@@ -471,9 +475,13 @@ qca8k_setup_led_ctrl(struct qca8k_priv *priv) * the correct port for LED setup. */ ret = qca8k_parse_port_leds(priv, port, qca8k_port_to_phy(port_num)); - if (ret) + if (ret) { + fwnode_handle_put(port); + fwnode_handle_put(ports); return ret; + } }
+ fwnode_handle_put(ports); return 0; }