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leds: lm3532: Make error handling more robust 

It's easy to miss necessary clean up, e.g. firmware node reference counting,
during error path in ->probe(). Make it more robust by moving to a single
point of return.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Andy Shevchenko 2021-05-10 12:50:32 +03:00 committed by Pavel Machek
parent 99be74f61c
commit 2f39f68cec
1 changed files with 2 additions and 5 deletions
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7
drivers/leds/leds-lm3532.c
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@ -586,7 +586,6 @@ static int lm3532_parse_node(struct lm3532_data *priv)
ret = fwnode_property_read_u32(child, "reg", &control_bank);
if (ret) {
dev_err(&priv->client->dev, "reg property missing\n");
fwnode_handle_put(child);
goto child_out;
}
@ -601,7 +600,6 @@ static int lm3532_parse_node(struct lm3532_data *priv)
&led->mode);
if (ret) {
dev_err(&priv->client->dev, "ti,led-mode property missing\n");
fwnode_handle_put(child);
goto child_out;
}
@ -636,7 +634,6 @@ static int lm3532_parse_node(struct lm3532_data *priv)
led->num_leds);
if (ret) {
dev_err(&priv->client->dev, "led-sources property missing\n");
fwnode_handle_put(child);
goto child_out;
}
@ -647,7 +644,6 @@ static int lm3532_parse_node(struct lm3532_data *priv)
if (ret) {
dev_err(&priv->client->dev, "led register err: %d\n",
ret);
fwnode_handle_put(child);
goto child_out;
}
@ -655,14 +651,15 @@ static int lm3532_parse_node(struct lm3532_data *priv)
if (ret) {
dev_err(&priv->client->dev, "register init err: %d\n",
ret);
fwnode_handle_put(child);
goto child_out;
}
i++;
}
return 0;
child_out:
fwnode_handle_put(child);
return ret;
}