staging: iio: tsl2x7x: convert mutex_trylock() to mutex_lock()

The driver uses mutex_lock() and mutex_trylock() in several places.
Convert the mutex_trylock() to mutex_lock() for consistency with other
IIO light drivers in mainline.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c
index cf16dd206c0b9b0b6e6c7f799c954413ab05f874..5c611250127f9c4779453114c8923945fe586936 100644 (file)
--- a/drivers/staging/iio/light/tsl2x7x.c
+++ b/drivers/staging/iio/light/tsl2x7x.c
@@ -350,8 +350,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
        u32 ch0lux = 0;
        u32 ch1lux = 0;
 
-       if (mutex_trylock(&chip->als_mutex) == 0)
-               return chip->als_cur_info.lux; /* busy, so return LAST VALUE */
+       mutex_lock(&chip->als_mutex);
 
        if (chip->tsl2x7x_chip_status != TSL2X7X_CHIP_WORKING) {
                /* device is not enabled */
@@ -478,11 +477,7 @@ static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
        u8 chdata[2];
        struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 
-       if (mutex_trylock(&chip->prox_mutex) == 0) {
-               dev_err(&chip->client->dev,
-                       "%s: Can't get prox mutex\n", __func__);
-               return -EBUSY;
-       }
+       mutex_lock(&chip->prox_mutex);
 
        ret = tsl2x7x_read_status(chip);
        if (ret < 0)