iio: adc: twl4030-madc: Remove set but unused variables 'len'

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/twl4030-madc.c: In function ‘twl4030_madc_threaded_irq_handler’:
 drivers/iio/adc/twl4030-madc.c:475:9: warning: variable ‘len’ set but not used [-Wunused-but-set-variable]
 475 | int i, len, ret;
 | ^~~

Cc: Sebastian Reichel <sre@kernel.org>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: Mikko Ylinen <mikko.k.ylinen@nokia.com>
Cc: Amit Kucheria <amit.kucheria@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 463634d..8f24bc1 100644 (file)
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -472,7 +472,7 @@ static irqreturn_t twl4030_madc_threaded_irq_handler(int irq, void *_madc)
        struct twl4030_madc_data *madc = _madc;
        const struct twl4030_madc_conversion_method *method;
        u8 isr_val, imr_val;
-       int i, len, ret;
+       int i, ret;
        struct twl4030_madc_request *r;
 
        mutex_lock(&madc->lock);
@@ -504,8 +504,8 @@ static irqreturn_t twl4030_madc_threaded_irq_handler(int irq, void *_madc)
                        continue;
                method = &twl4030_conversion_methods[r->method];
                /* Read results */
-               len = twl4030_madc_read_channels(madc, method->rbase,
-                                                r->channels, r->rbuf, r->raw);
+               twl4030_madc_read_channels(madc, method->rbase,
+                                          r->channels, r->rbuf, r->raw);
                /* Free request */
                r->result_pending = false;
                r->active = false;
@@ -525,8 +525,8 @@ err_i2c:
                        continue;
                method = &twl4030_conversion_methods[r->method];
                /* Read results */
-               len = twl4030_madc_read_channels(madc, method->rbase,
-                                                r->channels, r->rbuf, r->raw);
+               twl4030_madc_read_channels(madc, method->rbase,
+                                          r->channels, r->rbuf, r->raw);
                /* Free request */
                r->result_pending = false;
                r->active = false;