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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-05-09 12:33:29 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-05-17 13:54:25 +0100 |
| commit | 6fbaebae758dd68c6bda22164e61038eb72ce036 (patch) | |
| tree | 4ffcbcaff69007478090161b076809ddf3c7e216 /drivers/iio/light | |
| parent | a2fa3debc12e4a401a4c6febc1804036a62f1e31 (diff) | |
| download | linux-stable-6fbaebae758dd68c6bda22164e61038eb72ce036.tar.gz linux-stable-6fbaebae758dd68c6bda22164e61038eb72ce036.tar.bz2 linux-stable-6fbaebae758dd68c6bda22164e61038eb72ce036.zip | |
iio: light: tsl2583: Balance runtime pm + use pm_runtime_resume_and_get()
Error paths in read_raw() and write_raw() callbacks failed to perform and
type of runtime pm put(). Remove called pm_runtime_put_noidle()
but there is no equivalent get (this is safe because the reference
count is protected against going below zero, but it is misleading.
Whilst here use pm_runtime_resume_and_get() to replace boilerplate.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Brian Masney <masneyb@onstation.org>
Reviewed-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210509113354.660190-4-jic23@kernel.org
Diffstat (limited to 'drivers/iio/light')
| -rw-r--r-- | drivers/iio/light/tsl2583.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c index c9d8f07a6fcd..7e101d5f72ee 100644 --- a/drivers/iio/light/tsl2583.c +++ b/drivers/iio/light/tsl2583.c @@ -644,9 +644,7 @@ static int tsl2583_set_pm_runtime_busy(struct tsl2583_chip *chip, bool on) int ret; if (on) { - ret = pm_runtime_get_sync(&chip->client->dev); - if (ret < 0) - pm_runtime_put_noidle(&chip->client->dev); + ret = pm_runtime_resume_and_get(&chip->client->dev); } else { pm_runtime_mark_last_busy(&chip->client->dev); ret = pm_runtime_put_autosuspend(&chip->client->dev); @@ -729,8 +727,10 @@ static int tsl2583_read_raw(struct iio_dev *indio_dev, read_done: mutex_unlock(&chip->als_mutex); - if (ret < 0) + if (ret < 0) { + tsl2583_set_pm_runtime_busy(chip, false); return ret; + } /* * Preserve the ret variable if the call to @@ -791,8 +791,10 @@ static int tsl2583_write_raw(struct iio_dev *indio_dev, mutex_unlock(&chip->als_mutex); - if (ret < 0) + if (ret < 0) { + tsl2583_set_pm_runtime_busy(chip, false); return ret; + } ret = tsl2583_set_pm_runtime_busy(chip, false); if (ret < 0) @@ -880,7 +882,6 @@ static int tsl2583_remove(struct i2c_client *client) pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); - pm_runtime_put_noidle(&client->dev); return tsl2583_set_power_state(chip, TSL2583_CNTL_PWR_OFF); } |