On 17/07/15 09:52, Hartmut Knaack wrote:
> Protect bmc150_magn_runtime_resume() with a mutex, as done with other
> suspend/resume functions.
>
> Signed-off-by: Hartmut Knaack <knaack.h@xxxxxx>
Looks fine to me, but given we are getting into more complex patches, I'll
let this sit on the list for Irina and others to have a look at.
Jonathan
> ---
> drivers/iio/magnetometer/bmc150_magn.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
> index e1f804b2b244..ac0cdbde813b 100644
> --- a/drivers/iio/magnetometer/bmc150_magn.c
> +++ b/drivers/iio/magnetometer/bmc150_magn.c
> @@ -1052,9 +1052,14 @@ static int bmc150_magn_runtime_resume(struct device *dev)
> {
> struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
> struct bmc150_magn_data *data = iio_priv(indio_dev);
> + int ret;
>
> - return bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_NORMAL,
> - true);
> + mutex_lock(&data->mutex);
> + ret = bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_NORMAL,
> + true);
> + mutex_unlock(&data->mutex);
> +
> + return ret;
> }
> #endif
>
>
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