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regmap: debugfs: Use __free(kfree) in regmap_name_read_file()

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Use the __free(kfree) cleanup helper for the temporary buffer allocated
by regmap_name_read_file().

Remove the explicit kfree() calls from the error and success paths.

No functional change.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://patch.msgid.link/20261002-regmap-lock-2nd-v2-6-e172b0501c52@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peng Fan 2026-10-02 21:11:22 +08:00 committed by Mark Brown
parent ca685a42b0
commit d64967dee8
1 changed files with 3 additions and 8 deletions
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11
drivers/base/regmap/regmap-debugfs.c
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@ -38,10 +38,9 @@ static ssize_t regmap_name_read_file(struct file *file,
{
struct regmap *map = file->private_data;
const char *name = "nodev";
char *buf __free(kfree) = kmalloc(PAGE_SIZE, GFP_KERNEL);
int ret;
char *buf;
buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
@ -49,14 +48,10 @@ static ssize_t regmap_name_read_file(struct file *file,
name = map->dev->driver->name;
ret = snprintf(buf, PAGE_SIZE, "%s\n", name);
if (ret >= PAGE_SIZE) {
kfree(buf);
if (ret >= PAGE_SIZE)
return ret;
}
ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
kfree(buf);
return ret;
return simple_read_from_buffer(user_buf, count, ppos, buf, ret);
}
static const struct file_operations regmap_name_fops = {