staging:iio:ad9852: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c
index 4be2cf8c2ab62323fc261d72ecd7e71977f97384..11e4367375d20cd18fd25177f2372b254f6edf65 100644 (file)
--- a/drivers/staging/iio/frequency/ad9852.c
+++ b/drivers/staging/iio/frequency/ad9852.c
@@ -67,7 +67,6 @@ static ssize_t ad9852_set_parameter(struct device *dev,
                                        const char *buf,
                                        size_t len)
 {
-       struct spi_message msg;
        struct spi_transfer xfer;
        int ret;
        struct ad9852_config *config = (struct ad9852_config *)buf;
@@ -78,99 +77,77 @@ static ssize_t ad9852_set_parameter(struct device *dev,
        xfer.tx_buf = &config->phajst0[0];
        mutex_lock(&st->lock);
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 3;
        xfer.tx_buf = &config->phajst1[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 6;
        xfer.tx_buf = &config->fretun1[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 6;
        xfer.tx_buf = &config->fretun2[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 6;
        xfer.tx_buf = &config->dltafre[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 5;
        xfer.tx_buf = &config->updtclk[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 4;
        xfer.tx_buf = &config->ramprat[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 5;
        xfer.tx_buf = &config->control[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 3;
        xfer.tx_buf = &config->outpskm[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 2;
        xfer.tx_buf = &config->outpskr[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 
        xfer.len = 3;
        xfer.tx_buf = &config->daccntl[0];
 
-       spi_message_init(&msg);
-       spi_message_add_tail(&xfer, &msg);
-       ret = spi_sync(st->sdev, &msg);
+       ret = spi_sync_transfer(st->sdev, &xfer, 1);
        if (ret)
                goto error_ret;
 error_ret: