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iio: adc: at91: simplify with cleanup.h

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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>
Link: https://patch.msgid.link/20240705-cleanup-h-iio-v1-3-77114c7e84c5@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Krzysztof Kozlowski 2024-07-05 12:40:46 +02:00 committed by Jonathan Cameron
parent c74f7c09b5
commit e3749aae6e
1 changed files with 5 additions and 8 deletions
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13
drivers/iio/adc/at91_adc.c
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@ -7,6 +7,7 @@
#include <linux/bitmap.h>
#include <linux/bitops.h>
#include <linux/cleanup.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
@ -541,22 +542,18 @@ static int at91_adc_get_trigger_value_by_name(struct iio_dev *idev,
int i;
for (i = 0; i < st->caps->trigger_number; i++) {
char *name = kasprintf(GFP_KERNEL,
"%s-dev%d-%s",
idev->name,
iio_device_id(idev),
triggers[i].name);
char *name __free(kfree) = kasprintf(GFP_KERNEL, "%s-dev%d-%s",
idev->name,
iio_device_id(idev),
triggers[i].name);
if (!name)
return -ENOMEM;
if (strcmp(trigger_name, name) == 0) {
kfree(name);
if (triggers[i].value == 0)
return -EINVAL;
return triggers[i].value;
}
kfree(name);
}
return -EINVAL;