File: err.h

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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */

#ifndef __LINUX_ERR_H
#define __LINUX_ERR_H

#include <linux/types.h>
#include <asm/errno.h>

#define MAX_ERRNO       4095

#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)

static inline void * ERR_PTR(long error_)
{
	return (void *) error_;
}

static inline long PTR_ERR(const void *ptr)
{
	return (long) ptr;
}

static inline bool IS_ERR(const void *ptr)
{
	return IS_ERR_VALUE((unsigned long)ptr);
}

static inline bool IS_ERR_OR_NULL(const void *ptr)
{
	return (!ptr) || IS_ERR_VALUE((unsigned long)ptr);
}

#endif