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| author | Andy Shevchenko <andy.shevchenko@gmail.com> | 2021-05-10 13:01:36 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2021-05-10 08:02:15 -0700 |
| commit | 8370e5b093080c03cf89f7ebf0bef6984545429e (patch) | |
| tree | e2f03ec5d1fe707314dc80dc9edbe4d541498a1f /drivers | |
| parent | 2d101db3e5be3bbee6001d4227705cec70ecb82e (diff) | |
| download | linux-8370e5b093080c03cf89f7ebf0bef6984545429e.tar.gz linux-8370e5b093080c03cf89f7ebf0bef6984545429e.tar.bz2 linux-8370e5b093080c03cf89f7ebf0bef6984545429e.zip | |
hwmon: (ltc2992) Put fwnode in error case during ->probe()
In each iteration fwnode_for_each_available_child_node() bumps a reference
counting of a loop variable followed by dropping in on a next iteration,
Since in error case the loop is broken, we have to drop a reference count
by ourselves. Do it for port_fwnode in error case during ->probe().
Fixes: b0bd407e94b0 ("hwmon: (ltc2992) Add support")
Cc: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210510100136.3303142-1-andy.shevchenko@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/ltc2992.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c index 4382105bf142..2a4bed0ab226 100644 --- a/drivers/hwmon/ltc2992.c +++ b/drivers/hwmon/ltc2992.c @@ -900,11 +900,15 @@ static int ltc2992_parse_dt(struct ltc2992_state *st) fwnode_for_each_available_child_node(fwnode, child) { ret = fwnode_property_read_u32(child, "reg", &addr); - if (ret < 0) + if (ret < 0) { + fwnode_handle_put(child); return ret; + } - if (addr > 1) + if (addr > 1) { + fwnode_handle_put(child); return -EINVAL; + } ret = fwnode_property_read_u32(child, "shunt-resistor-micro-ohms", &val); if (!ret) |