4.0-stable review patch. If anyone has any objections, please let me know.
------------------ From: Alban Bedel <[email protected]> commit 8e71c04f863a1754f21b27fb8ecb773d680a0a80 upstream. In SPI mode the transfer buffer is locked with a mutex. However this mutex is only initilized after the probe, but some transfer needs to be done in the probe. To fix this bug we move the mutex initialization at the beginning of the device probe. Signed-off-by: Alban Bedel <[email protected]> Acked-by: Denis Ciocca <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/iio/accel/st_accel_core.c | 1 + drivers/iio/common/st_sensors/st_sensors_core.c | 2 -- drivers/iio/gyro/st_gyro_core.c | 1 + drivers/iio/magnetometer/st_magn_core.c | 1 + drivers/iio/pressure/st_pressure_core.c | 1 + 5 files changed, 4 insertions(+), 2 deletions(-) --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -465,6 +465,7 @@ int st_accel_common_probe(struct iio_dev indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &accel_info; + mutex_init(&adata->tb.buf_lock); st_sensors_power_enable(indio_dev); --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -304,8 +304,6 @@ int st_sensors_init_sensor(struct iio_de struct st_sensors_platform_data *of_pdata; int err = 0; - mutex_init(&sdata->tb.buf_lock); - /* If OF/DT pdata exists, it will take precedence of anything else */ of_pdata = st_sensors_of_probe(indio_dev->dev.parent, pdata); if (of_pdata) --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -317,6 +317,7 @@ int st_gyro_common_probe(struct iio_dev indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &gyro_info; + mutex_init(&gdata->tb.buf_lock); st_sensors_power_enable(indio_dev); --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -369,6 +369,7 @@ int st_magn_common_probe(struct iio_dev indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &magn_info; + mutex_init(&mdata->tb.buf_lock); st_sensors_power_enable(indio_dev); --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -417,6 +417,7 @@ int st_press_common_probe(struct iio_dev indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &press_info; + mutex_init(&press_data->tb.buf_lock); st_sensors_power_enable(indio_dev); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
