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debugfs: remove return value of debugfs_create_regset32() 

No one checks the return value of debugfs_create_regset32(), as it's not
needed, so make the return value void, so that no one tries to do so in
the future.

Link: https://lore.kernel.org/r/20191122104453.GA2017837@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2019-11-22 11:44:53 +01:00
parent bb6d3fb354
commit ae91c92565
3 changed files with 13 additions and 23 deletions
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6
Documentation/filesystems/debugfs.txt
View File

@ -164,9 +164,9 @@ file.
void __iomem *base;
};
struct dentry *debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset);
debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset);
void debugfs_print_regs32(struct seq_file *s, struct debugfs_reg32 *regs,
int nregs, void __iomem *base, char *prefix);

17
fs/debugfs/file.c
View File

@ -1090,21 +1090,12 @@ static const struct file_operations fops_regset32 = {
* This function creates a file in debugfs with the given name that reports
* the names and values of a set of 32-bit registers. If the @mode variable
* is so set it can be read from. Writing is not supported.
*
* This function will return a pointer to a dentry if it succeeds. This
* pointer must be passed to the debugfs_remove() function when the file is
* to be removed (no automatic cleanup happens if your module is unloaded,
* you are responsible here.) If an error occurs, ERR_PTR(-ERROR) will be
* returned.
*
* If debugfs is not enabled in the kernel, the value ERR_PTR(-ENODEV) will
* be returned.
*/
struct dentry *debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset)
void debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset)
{
return debugfs_create_file(name, mode, parent, regset, &fops_regset32);
debugfs_create_file(name, mode, parent, regset, &fops_regset32);
}
EXPORT_SYMBOL_GPL(debugfs_create_regset32);

13
include/linux/debugfs.h
View File

@ -127,9 +127,9 @@ struct dentry *debugfs_create_blob(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_blob_wrapper *blob);
struct dentry *debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset);
void debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset);
void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
int nregs, void __iomem *base, char *prefix);
@ -304,11 +304,10 @@ static inline struct dentry *debugfs_create_blob(const char *name, umode_t mode,
return ERR_PTR(-ENODEV);
}
static inline struct dentry *debugfs_create_regset32(const char *name,
umode_t mode, struct dentry *parent,
struct debugfs_regset32 *regset)
static inline void debugfs_create_regset32(const char *name, umode_t mode,
struct dentry *parent,
struct debugfs_regset32 *regset)
{
return ERR_PTR(-ENODEV);
}
static inline void debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,