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iio: adc: ad_sigma_delta: Remove unused variable 'ret'

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

 drivers/iio/adc/ad_sigma_delta.c: In function ‘ad_sd_trigger_handler’:
 drivers/iio/adc/ad_sigma_delta.c:405:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 405 | int ret;
 | ^~~

Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lee Jones 2020-07-16 14:58:59 +01:00 committed by Jonathan Cameron
parent 263771dbc8
commit 0232d07cb2
1 changed files with 2 additions and 5 deletions
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7
drivers/iio/adc/ad_sigma_delta.c
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@ -398,7 +398,6 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
unsigned int reg_size;
unsigned int data_reg;
uint8_t data[16];
int ret;
memset(data, 0x00, 16);
@ -415,14 +414,12 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
case 4:
case 2:
case 1:
ret = ad_sd_read_reg_raw(sigma_delta, data_reg, reg_size,
&data[0]);
ad_sd_read_reg_raw(sigma_delta, data_reg, reg_size, &data[0]);
break;
case 3:
/* We store 24 bit samples in a 32 bit word. Keep the upper
* byte set to zero. */
ret = ad_sd_read_reg_raw(sigma_delta, data_reg, reg_size,
&data[1]);
ad_sd_read_reg_raw(sigma_delta, data_reg, reg_size, &data[1]);
break;
}