[PATCH v3 0/3] devres: provide and use devm_krealloc()

Bartosz Golaszewski
2020-07-10T16:15:22Z

Hi Greg,

As discussed, resending the remaining devm_krealloc() patches.

===

Regular krealloc() obviously can't work with managed memory. This series
implements devm_krealloc() and adds the first users with hope that this
helper will be adopted by other drivers currently using non-managed
krealloc().

Some additional changes to the code modified by main patches are included.

v1 -> v2:
- remove leftover call to hwmon_device_unregister() from pmbus_core.c
- add a patch extending devm_kmalloc() to handle zero size case
- use WARN_ON() instead of WARN_ONCE() in devm_krealloc() when passed
a pointer to non-managed memory
- correctly handle the case when devm_krealloc() is passed a pointer to
memory in .rodata (potentially returned by devm_kstrdup_const())
- correctly handle ZERO_SIZE_PTR passed as the ptr argument in devm_krealloc()

v2 -> v3:
- drop already applied patches
- collect Acks
- add an additional user in iio

Bartosz Golaszewski (3):
devres: provide devm_krealloc()
hwmon: pmbus: use more devres helpers
iio: adc: xilinx-xadc: use devm_krealloc()

.../driver-api/driver-model/devres.rst | 1 +
drivers/base/devres.c | 50 +++++++++++++++++++
drivers/hwmon/pmbus/pmbus_core.c | 28 ++++-------
drivers/iio/adc/xilinx-xadc-core.c | 16 +++---
include/linux/device.h | 2 +
5 files changed, 70 insertions(+), 27 deletions(-)

--
2.26.1