From 8e71c04f863a1754f21b27fb8ecb773d680a0a80 Mon Sep 17 00:00:00 2001 From: Alban Bedel Date: Mon, 20 Apr 2015 13:57:18 +0200 Subject: 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 Acked-by: Denis Ciocca Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/gyro/st_gyro_core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/iio/gyro') diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index 21395f26d227..ffe96642b6d0 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); -- cgit v1.2.3