iio: adc: ad7280a: simplify with cleanup.h

Allocate the memory with scoped/cleanup.h to reduce error handling and
make the code a bit simpler.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240705-cleanup-h-iio-v1-2-77114c7e84c5@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Krzysztof Kozlowski 2024-07-05 12:40:45 +02:00 committed by Jonathan Cameron
parent f44c314faa
commit c74f7c09b5

View File

@ -7,6 +7,7 @@
#include <linux/bitfield.h>
#include <linux/bits.h>
#include <linux/cleanup.h>
#include <linux/crc8.h>
#include <linux/delay.h>
#include <linux/device.h>
@ -803,16 +804,16 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
{
struct iio_dev *indio_dev = private;
struct ad7280_state *st = iio_priv(indio_dev);
unsigned int *channels;
int i, ret;
channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL);
unsigned int *channels __free(kfree) = kcalloc(st->scan_cnt, sizeof(*channels),
GFP_KERNEL);
if (!channels)
return IRQ_HANDLED;
ret = ad7280_read_all_channels(st, st->scan_cnt, channels);
if (ret < 0)
goto out;
return IRQ_HANDLED;
for (i = 0; i < st->scan_cnt; i++) {
unsigned int val;
@ -852,9 +853,6 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
}
}
out:
kfree(channels);
return IRQ_HANDLED;
}