mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-16 17:12:50 -04:00
37983fad7f
For temporary field allocation, the user has to perform manual cleanup,
or rely on devm_regmap_field_alloc() to (eventually) clean up the
allocated resources when an error occurs.
Add a cleanup helper that takes care of freeing the allocated
regmap_field whenever it goes out of scope.
This can simplify this example:
struct regmap_field *field = regmap_field_alloc(...);
if (IS_ERR(field))
return PTR_ERR(field);
int err = regmap_field_read(...);
if (err)
goto out;
/* some logic that may also error */
err = regmap_field_write(...);
out:
regmap_field_free(field);
return err;
into the shorter:
struct regmap_field *field __free(regmap_field) = regmap_field_alloc(...);
if (IS_ERR(field))
return PTR_ERR(field);
int err = regmap_field_read(...);
if (err)
return err;
/* some logic that may also error */
return regmap_field_write(...);
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Link: https://patch.msgid.link/20260220160112.543391-2-sander@svanheule.net
Signed-off-by: Mark Brown <broonie@kernel.org>