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Subject[PATCH] debugfs: make debugfs_create_u32_array() return void
The single user of debugfs_create_u32_array() does not care about the
return value of it, so make it return void as there is no need to do
anything with the return value.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
Documentation/filesystems/debugfs.txt | 2 +-
fs/debugfs/file.c | 13 ++++---------
include/linux/debugfs.h | 12 +++++-------
3 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt
index 4f45f71149cb..6320e86d2294 100644
--- a/Documentation/filesystems/debugfs.txt
+++ b/Documentation/filesystems/debugfs.txt
@@ -168,7 +168,7 @@ byte offsets over a base for the register block.

If you want to dump an u32 array in debugfs, you can create file with:

- struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
+ void debugfs_create_u32_array(const char *name, umode_t mode,
struct dentry *parent,
u32 *array, u32 elements);

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 4fce1da7db23..2c17039c6287 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -1004,24 +1004,19 @@ static const struct file_operations u32_array_fops = {
* @array as data. If the @mode variable is so set it can be read from.
* Writing is not supported. Seek within the file is also not supported.
* Once array is created its size can not be changed.
- *
- * The function returns a pointer to dentry on success. If debugfs is not
- * enabled in the kernel, the value -%ENODEV will be returned.
*/
-struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent,
- u32 *array, u32 elements)
+void debugfs_create_u32_array(const char *name, umode_t mode,
+ struct dentry *parent, u32 *array, u32 elements)
{
struct array_data *data = kmalloc(sizeof(*data), GFP_KERNEL);

if (data == NULL)
- return NULL;
+ return;

data->array = array;
data->elements = elements;

- return debugfs_create_file_unsafe(name, mode, parent, data,
- &u32_array_fops);
+ debugfs_create_file_unsafe(name, mode, parent, data, &u32_array_fops);
}
EXPORT_SYMBOL_GPL(debugfs_create_u32_array);

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 3b0ba54cc4d5..58424eb3b329 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -133,9 +133,8 @@ struct dentry *debugfs_create_regset32(const char *name, umode_t mode,
void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
int nregs, void __iomem *base, char *prefix);

-struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent,
- u32 *array, u32 elements);
+void debugfs_create_u32_array(const char *name, umode_t mode,
+ struct dentry *parent, u32 *array, u32 elements);

struct dentry *debugfs_create_devm_seqfile(struct device *dev, const char *name,
struct dentry *parent,
@@ -353,11 +352,10 @@ static inline bool debugfs_initialized(void)
return false;
}

-static inline struct dentry *debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent,
- u32 *array, u32 elements)
+static inline void debugfs_create_u32_array(const char *name, umode_t mode,
+ struct dentry *parent, u32 *array,
+ u32 elements)
{
- return ERR_PTR(-ENODEV);
}

static inline struct dentry *debugfs_create_devm_seqfile(struct device *dev,
--
2.21.0
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