From: Andy Shevchenko andy.shevchenko@gmail.com
[ Upstream commit 9999908ca1abee7aa518a4f6a3739517c137acbf ]
fwnode_get_next_child_node() bumps a reference counting of a returned variable. We have to balance it whenever we return to the caller.
All the same in fwnode_for_each_child_node() case.
Fixes: c3987cd2bca3 ("leds: lgm: Add LED controller driver for LGM SoC") Cc: Amireddy Mallikarjuna reddy mallikarjunax.reddy@linux.intel.com Signed-off-by: Andy Shevchenko andy.shevchenko@gmail.com Signed-off-by: Pavel Machek pavel@ucw.cz Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/leds/blink/leds-lgm-sso.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/leds/blink/leds-lgm-sso.c b/drivers/leds/blink/leds-lgm-sso.c index 7d5f0bf2817a..2dd285052c6a 100644 --- a/drivers/leds/blink/leds-lgm-sso.c +++ b/drivers/leds/blink/leds-lgm-sso.c @@ -630,8 +630,10 @@ __sso_led_dt_parse(struct sso_led_priv *priv, struct fwnode_handle *fw_ssoled)
fwnode_for_each_child_node(fw_ssoled, fwnode_child) { led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL); - if (!led) - return -ENOMEM; + if (!led) { + ret = -ENOMEM; + goto __dt_err; + }
INIT_LIST_HEAD(&led->list); led->priv = priv; @@ -701,11 +703,11 @@ __sso_led_dt_parse(struct sso_led_priv *priv, struct fwnode_handle *fw_ssoled) if (sso_create_led(priv, led, fwnode_child)) goto __dt_err; } - fwnode_handle_put(fw_ssoled);
return 0; + __dt_err: - fwnode_handle_put(fw_ssoled); + fwnode_handle_put(fwnode_child); /* unregister leds */ list_for_each(p, &priv->led_list) { led = list_entry(p, struct sso_led, list); @@ -730,6 +732,7 @@ static int sso_led_dt_parse(struct sso_led_priv *priv) fw_ssoled = fwnode_get_named_child_node(fwnode, "ssoled"); if (fw_ssoled) { ret = __sso_led_dt_parse(priv, fw_ssoled); + fwnode_handle_put(fw_ssoled); if (ret) return ret; }