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Message-Id: <20240705074852.423202-11-srinivas.kandagatla@linaro.org>
Date: Fri, 5 Jul 2024 08:48:47 +0100
From: srinivas.kandagatla@...aro.org
To: gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 10/15] nvmem: core: remove global nvmem_cells_group
From: Thomas Weißschuh <linux@...ssschuh.net>
nvmem_cells_groups is a global variable that is also mutated.
This is complicated and error-prone.
Instead use a normal stack variable.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
drivers/nvmem/core.c | 26 ++++++++++----------------
1 file changed, 10 insertions(+), 16 deletions(-)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 96e76d88204c..015e6b9e0b60 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -357,11 +357,6 @@ static const struct attribute_group nvmem_bin_group = {
.is_bin_visible = nvmem_bin_attr_is_visible,
};
-/* Cell attributes will be dynamically allocated */
-static struct attribute_group nvmem_cells_group = {
- .name = "cells",
-};
-
static const struct attribute_group *nvmem_dev_groups[] = {
&nvmem_bin_group,
NULL,
@@ -424,23 +419,24 @@ static void nvmem_sysfs_remove_compat(struct nvmem_device *nvmem,
static int nvmem_populate_sysfs_cells(struct nvmem_device *nvmem)
{
- struct bin_attribute **cells_attrs, *attrs;
+ struct attribute_group group = {
+ .name = "cells",
+ };
struct nvmem_cell_entry *entry;
+ struct bin_attribute *attrs;
unsigned int ncells = 0, i = 0;
int ret = 0;
mutex_lock(&nvmem_mutex);
- if (list_empty(&nvmem->cells) || nvmem->sysfs_cells_populated) {
- nvmem_cells_group.bin_attrs = NULL;
+ if (list_empty(&nvmem->cells) || nvmem->sysfs_cells_populated)
goto unlock_mutex;
- }
/* Allocate an array of attributes with a sentinel */
ncells = list_count_nodes(&nvmem->cells);
- cells_attrs = devm_kcalloc(&nvmem->dev, ncells + 1,
- sizeof(struct bin_attribute *), GFP_KERNEL);
- if (!cells_attrs) {
+ group.bin_attrs = devm_kcalloc(&nvmem->dev, ncells + 1,
+ sizeof(struct bin_attribute *), GFP_KERNEL);
+ if (!group.bin_attrs) {
ret = -ENOMEM;
goto unlock_mutex;
}
@@ -467,13 +463,11 @@ static int nvmem_populate_sysfs_cells(struct nvmem_device *nvmem)
goto unlock_mutex;
}
- cells_attrs[i] = &attrs[i];
+ group.bin_attrs[i] = &attrs[i];
i++;
}
- nvmem_cells_group.bin_attrs = cells_attrs;
-
- ret = device_add_group(&nvmem->dev, &nvmem_cells_group);
+ ret = device_add_group(&nvmem->dev, &group);
if (ret)
goto unlock_mutex;
--
2.25.1
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