diff options
| author | Alban Bedel <alban.bedel@avionic-design.de> | 2015-04-20 11:57:18 (GMT) |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-04-26 17:24:08 (GMT) |
| commit | 8e71c04f863a1754f21b27fb8ecb773d680a0a80 (patch) | |
| tree | e697db6e15c6e15b08ca84fd9c61fcce039dd685 /drivers/iio/gyro | |
| parent | 97ffae1d30c3f6ceee67d5b0d3e540c08c13c744 (diff) | |
| download | linux-8e71c04f863a1754f21b27fb8ecb773d680a0a80.tar.xz | |
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/gyro')
| -rw-r--r-- | drivers/iio/gyro/st_gyro_core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index 21395f2..ffe9664 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -400,6 +400,7 @@ int st_gyro_common_probe(struct iio_dev *indio_dev) indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &gyro_info; + mutex_init(&gdata->tb.buf_lock); st_sensors_power_enable(indio_dev); |