lkml.org 
[lkml]   [2022]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 2/3] iio: temperature: ltc2983: Use single error path to put OF node
Date
There are several, possibly copied'n'pasted, places in the functions,
where OF node is put and error returned directly, while the common
exit point exists. Unify all these cases to use a single error path.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
---
v5: added tag (Nuno)
v4: no changes
v3: no changes
drivers/iio/temperature/ltc2983.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
index 94d6dd4db47a..636bbc9011b9 100644
--- a/drivers/iio/temperature/ltc2983.c
+++ b/drivers/iio/temperature/ltc2983.c
@@ -653,8 +653,6 @@ static struct ltc2983_sensor *ltc2983_thermocouple_new(

phandle = of_parse_phandle(child, "adi,cold-junction-handle", 0);
if (phandle) {
- int ret;
-
ret = of_property_read_u32(phandle, "reg",
&thermo->cold_junction_chan);
if (ret) {
@@ -663,8 +661,7 @@ static struct ltc2983_sensor *ltc2983_thermocouple_new(
* the error right away.
*/
dev_err(&st->spi->dev, "Property reg must be given\n");
- of_node_put(phandle);
- return ERR_PTR(-EINVAL);
+ goto fail;
}
}

@@ -676,8 +673,8 @@ static struct ltc2983_sensor *ltc2983_thermocouple_new(
propname, false,
16384, true);
if (IS_ERR(thermo->custom)) {
- of_node_put(phandle);
- return ERR_CAST(thermo->custom);
+ ret = PTR_ERR(thermo->custom);
+ goto fail;
}
}

@@ -687,6 +684,10 @@ static struct ltc2983_sensor *ltc2983_thermocouple_new(

of_node_put(phandle);
return &thermo->sensor;
+
+fail:
+ of_node_put(phandle);
+ return ERR_PTR(ret);
}

static struct ltc2983_sensor *ltc2983_rtd_new(const struct device_node *child,
@@ -803,8 +804,8 @@ static struct ltc2983_sensor *ltc2983_rtd_new(const struct device_node *child,
"adi,custom-rtd",
false, 2048, false);
if (IS_ERR(rtd->custom)) {
- of_node_put(phandle);
- return ERR_CAST(rtd->custom);
+ ret = PTR_ERR(rtd->custom);
+ goto fail;
}
}

@@ -926,8 +927,8 @@ static struct ltc2983_sensor *ltc2983_thermistor_new(
steinhart,
64, false);
if (IS_ERR(thermistor->custom)) {
- of_node_put(phandle);
- return ERR_CAST(thermistor->custom);
+ ret = PTR_ERR(thermistor->custom);
+ goto fail;
}
}
/* set common parameters */
--
2.34.1
\
 
 \ /
  Last update: 2022-09-17 16:16    [W:0.044 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site