i2c: muxes: fix leaked i2c adapter device node references
Every call of of_parse_phandle() increments user count of found device
node, if OF_DYNAMIC is enabled.
The change fixes all similar addressed cases in drivers/i2c.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c
index 71aac09..402e3a6 100644
--- a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c
+++ b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c
@@ -197,6 +197,7 @@
return -EINVAL;
}
arb->parent = of_get_i2c_adapter_by_node(parent_np);
+ of_node_put(parent_np);
if (!arb->parent) {
dev_err(dev, "Cannot find parent bus\n");
return -EPROBE_DEFER;
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index 70db992..b8e11c1 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -76,6 +76,7 @@
return -ENODEV;
}
adapter = of_find_i2c_adapter_by_node(adapter_np);
+ of_node_put(adapter_np);
if (!adapter)
return -EPROBE_DEFER;
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index b48378c..b5a982b 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -111,6 +111,7 @@
return -ENODEV;
}
adapter = of_find_i2c_adapter_by_node(adapter_np);
+ of_node_put(adapter_np);
if (!adapter) {
dev_err(mux->dev, "Cannot find parent bus\n");
return -EPROBE_DEFER;
diff --git a/drivers/i2c/muxes/i2c-mux-reg.c b/drivers/i2c/muxes/i2c-mux-reg.c
index 86d41d36..57ec57e 100644
--- a/drivers/i2c/muxes/i2c-mux-reg.c
+++ b/drivers/i2c/muxes/i2c-mux-reg.c
@@ -106,6 +106,7 @@
return -ENODEV;
}
adapter = of_find_i2c_adapter_by_node(adapter_np);
+ of_node_put(adapter_np);
if (!adapter)
return -EPROBE_DEFER;