nvmem: split out the reg_read/write() callbacks out of struct nvmem_device

Browse source

The reg_read/write() fields of struct nvmem_device point to memory owned
by the nvmem provider. They must not be dereferenced after the provider
is unregistered. Ahead of protecting against accesses to invalid memory
with SRCU, move the callbacks into a separate structure the address of
which is stored in nvmem_device.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Tested-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://patch.msgid.link/20260729094647.111468-7-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Bartosz Golaszewski 2026-07-29 10:46:39 +01:00 • committed by Greg Kroah-Hartman

parent 1f4b416574

commit 7f1dbd7a6e

2 changed files with 34 additions and 12 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

37

drivers/nvmem/core.c

View file

9

drivers/nvmem/internals.h

View file