diff options
Diffstat (limited to 'drivers/staging/iio/meter/ade7753.c')
| -rw-r--r-- | drivers/staging/iio/meter/ade7753.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index 00492cad7c57..78e8f560eeec 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -322,6 +322,7 @@ static int ade7753_set_irq(struct device *dev, bool enable) { int ret; u8 irqen; + ret = ade7753_spi_read_reg_8(dev, ADE7753_IRQEN, &irqen); if (ret) goto error_ret; @@ -377,9 +378,10 @@ static ssize_t ade7753_read_frequency(struct device *dev, struct device_attribute *attr, char *buf) { - int ret, len = 0; + int ret; u16 t; int sps; + ret = ade7753_spi_read_reg_16(dev, ADE7753_MODE, &t); if (ret) return ret; @@ -387,8 +389,7 @@ static ssize_t ade7753_read_frequency(struct device *dev, t = (t >> 11) & 0x3; sps = 27900 / (1 + t); - len = sprintf(buf, "%d\n", sps); - return len; + return sprintf(buf, "%d\n", sps); } static ssize_t ade7753_write_frequency(struct device *dev, |