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iio: core: make use of simple_write_to_buffer()

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Instead of open coding (kind of) simple_write_to_buffer(), use it.

While at it, use ascii representation to terminate the string as that is
the more common way of doing it.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250218-dev-iio-misc-v1-2-bf72b20a1eb8@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sá 2025-02-18 10:31:26 +00:00 • committed by Jonathan Cameron
parent 035b498921
commit 6d5dd486c7
1 changed files with 5 additions and 4 deletions
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9
drivers/iio/industrialio-core.c
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@ -410,11 +410,12 @@ static ssize_t iio_debugfs_write_reg(struct file *file,
char buf[80];
int ret;
count = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, userbuf,
count);
if (ret < 0)
return ret;
buf[count] = 0;
buf[count] = '\0';
ret = sscanf(buf, "%i %i", &reg, &val);