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| author | Andy Shevchenko <andy.shevchenko@gmail.com> | 2021-05-29 14:19:26 +0300 |
|---|---|---|
| committer | Pavel Machek <pavel@ucw.cz> | 2021-08-04 00:46:10 +0300 |
| commit | 9999908ca1abee7aa518a4f6a3739517c137acbf (patch) | |
| tree | c848c3acb3ef591dcf6d25548b4ff8ea50461bc9 | |
| parent | e06ba23b0518875e56e385500613b8651f541742 (diff) | |
| download | linux-9999908ca1abee7aa518a4f6a3739517c137acbf.tar.xz | |
leds: lgm-sso: Put fwnode in any case during ->probe()
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>
| -rw-r--r-- | drivers/leds/blink/leds-lgm-sso.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/leds/blink/leds-lgm-sso.c b/drivers/leds/blink/leds-lgm-sso.c index 7eb2f44f16be..62ce83cea553 100644 --- a/drivers/leds/blink/leds-lgm-sso.c +++ b/drivers/leds/blink/leds-lgm-sso.c @@ -631,8 +631,10 @@ __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; @@ -702,11 +704,11 @@ __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); @@ -731,6 +733,7 @@ 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; } |