diff options
| author | Alban Bedel <alban.bedel@avionic-design.de> | 2015-04-20 13:57:18 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-04-26 18:24:08 +0100 |
| commit | 8e71c04f863a1754f21b27fb8ecb773d680a0a80 (patch) | |
| tree | e697db6e15c6e15b08ca84fd9c61fcce039dd685 /drivers/iio/magnetometer/st_magn_core.c | |
| parent | 97ffae1d30c3f6ceee67d5b0d3e540c08c13c744 (diff) | |
iio:st_sensors: Fix oops when probing SPI devices
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 <alban.bedel@avionic-design.de>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/magnetometer/st_magn_core.c')
| -rw-r--r-- | drivers/iio/magnetometer/st_magn_core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index 8ade473f99fe..2e56f812a644 100644 --- 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) indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &magn_info; + mutex_init(&mdata->tb.buf_lock); st_sensors_power_enable(indio_dev); |