drivers: staging: iio: meter: Removed unnecessary variable

Variable len is used only to store the return value. Hence len is
removed and the return statement modified. Coccinelle was used to
detect such removable variables:

@rule1@
identifier ret;
expression e;
@@

-ret =
+return
           e;
-return ret;

Signed-off-by: Tina Johnson <tinajohnson.1234@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 7e287dae7b444e903136facdbd091d5031127753..652aa1069b066e88227fd3e47450c99027cdfc38 100644 (file)
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -485,7 +485,7 @@ static ssize_t ade7758_read_frequency(struct device *dev,
                struct device_attribute *attr,
                char *buf)
 {
-       int ret, len = 0;
+       int ret;
        u8 t;
        int sps;
 
@@ -498,8 +498,7 @@ static ssize_t ade7758_read_frequency(struct device *dev,
        t = (t >> 5) & 0x3;
        sps = 26040 / (1 << t);
 
-       len = sprintf(buf, "%d SPS\n", sps);
-       return len;
+       return sprintf(buf, "%d SPS\n", sps);
 }
 
 static ssize_t ade7758_write_frequency(struct device *dev,