#include <linux/kernel.h>
#include <linux/fs.h>

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Macros
#define	ERR_PTR(err) ((void*)(long)(err))

#define	PTR_ERR(ptr) ((long)(ptr))

#define	IS_ERR(ptr) IS_ERR_VALUE((unsigned long)(ptr))

#define	IS_ERR_OR_NULL(ptr) (!(ptr) \|\| IS_ERR(ptr))

#define	IS_ERR_OR_ZERO(ptr) (IS_ERR(ptr) ? PTR_ERR(ptr) : 0)

#define	ERR_CAST(ptr) ((void*)(ptr))

#define	PTR_ERR_OR_NULL(ptr) (IS_ERR(ptr) ? PTR_ERR(ptr) : 0)

Macro Definition Documentation

◆ ERR_CAST

#define ERR_CAST ( ptr ) ((void*)(ptr))

#define ERR_PTR ( err ) ((void*)(long)(err))

#define IS_ERR ( ptr ) IS_ERR_VALUE((unsigned long)(ptr))

#define IS_ERR_OR_NULL ( ptr ) (!(ptr) || IS_ERR(ptr))

#define IS_ERR_OR_ZERO ( ptr ) (IS_ERR(ptr) ? PTR_ERR(ptr) : 0)

#define PTR_ERR ( ptr ) ((long)(ptr))

#define PTR_ERR_OR_NULL ( ptr ) (IS_ERR(ptr) ? PTR_ERR(ptr) : 0)