mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 09:12:39 +00:00
62 lines
2.5 KiB
Diff
62 lines
2.5 KiB
Diff
|
From 6d0ca4a2a7e25f9ad07c1f335f20b4d9e048cdd5 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
|
||
|
|
Date: Tue, 30 Apr 2024 09:49:11 +0100
|
||
|
|
Subject: [PATCH] nvmem: layouts: store owner from modules with
|
||
|
|
nvmem_layout_driver_register()
|
||
|
|
|
||
|
|
Modules registering driver with nvmem_layout_driver_register() might
|
||
|
|
forget to set .owner field. The field is used by some of other kernel
|
||
|
|
parts for reference counting (try_module_get()), so it is expected that
|
||
|
|
drivers will set it.
|
||
|
|
|
||
|
|
Solve the problem by moving this task away from the drivers to the core
|
||
|
|
code, just like we did for platform_driver in
|
||
|
|
commit 9447057eaff8 ("platform_device: use a macro instead of
|
||
|
|
platform_driver_register").
|
||
|
|
|
||
|
|
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
|
||
|
|
Reviewed-by: Michael Walle <mwalle@kernel.org>
|
||
|
|
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
|
||
|
|
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
||
|
|
Link: https://lore.kernel.org/r/20240430084921.33387-2-srinivas.kandagatla@linaro.org
|
||
|
|
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
|
---
|
||
|
|
drivers/nvmem/layouts.c | 6 ++++--
|
||
|
|
include/linux/nvmem-provider.h | 5 ++++-
|
||
|
|
2 files changed, 8 insertions(+), 3 deletions(-)
|
||
|
|
|
||
|
|
--- a/drivers/nvmem/layouts.c
|
||
|
|
+++ b/drivers/nvmem/layouts.c
|
||
|
|
@@ -52,13 +52,15 @@ static const struct bus_type nvmem_layou
|
||
|
|
.remove = nvmem_layout_bus_remove,
|
||
|
|
};
|
||
|
|
|
||
|
|
-int nvmem_layout_driver_register(struct nvmem_layout_driver *drv)
|
||
|
|
+int __nvmem_layout_driver_register(struct nvmem_layout_driver *drv,
|
||
|
|
+ struct module *owner)
|
||
|
|
{
|
||
|
|
drv->driver.bus = &nvmem_layout_bus_type;
|
||
|
|
+ drv->driver.owner = owner;
|
||
|
|
|
||
|
|
return driver_register(&drv->driver);
|
||
|
|
}
|
||
|
|
-EXPORT_SYMBOL_GPL(nvmem_layout_driver_register);
|
||
|
|
+EXPORT_SYMBOL_GPL(__nvmem_layout_driver_register);
|
||
|
|
|
||
|
|
void nvmem_layout_driver_unregister(struct nvmem_layout_driver *drv)
|
||
|
|
{
|
||
|
|
--- a/include/linux/nvmem-provider.h
|
||
|
|
+++ b/include/linux/nvmem-provider.h
|
||
|
|
@@ -199,7 +199,10 @@ int nvmem_add_one_cell(struct nvmem_devi
|
||
|
|
int nvmem_layout_register(struct nvmem_layout *layout);
|
||
|
|
void nvmem_layout_unregister(struct nvmem_layout *layout);
|
||
|
|
|
||
|
|
-int nvmem_layout_driver_register(struct nvmem_layout_driver *drv);
|
||
|
|
+#define nvmem_layout_driver_register(drv) \
|
||
|
|
+ __nvmem_layout_driver_register(drv, THIS_MODULE)
|
||
|
|
+int __nvmem_layout_driver_register(struct nvmem_layout_driver *drv,
|
||
|
|
+ struct module *owner);
|
||
|
|
void nvmem_layout_driver_unregister(struct nvmem_layout_driver *drv);
|
||
|
|
#define module_nvmem_layout_driver(__nvmem_layout_driver) \
|
||
|
|
module_driver(__nvmem_layout_driver, nvmem_layout_driver_register, \
|