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authorAlban Bedel <alban.bedel@avionic-design.de>2015-04-20 13:57:18 +0200
committerJonathan Cameron <jic23@kernel.org>2015-04-26 18:24:08 +0100
commit8e71c04f863a1754f21b27fb8ecb773d680a0a80 (patch)
treee697db6e15c6e15b08ca84fd9c61fcce039dd685 /drivers/iio/gyro
parent97ffae1d30c3f6ceee67d5b0d3e540c08c13c744 (diff)
downloadop-kernel-dev-8e71c04f863a1754f21b27fb8ecb773d680a0a80.zip
op-kernel-dev-8e71c04f863a1754f21b27fb8ecb773d680a0a80.tar.gz
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.c1
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);
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