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e60460f4e5
Add missing PTR_ERR_OR_ZERO implementation. Also add a bunch of generated files to .gitignore. Signed-off-by: Andrii Nakryiko <andriin@fb.com>
39 lines
686 B
C
39 lines
686 B
C
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#ifndef __LINUX_ERR_H
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#define __LINUX_ERR_H
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#include <linux/types.h>
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#include <asm/errno.h>
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#define MAX_ERRNO 4095
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#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)
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static inline void * ERR_PTR(long error_)
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{
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return (void *) error_;
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}
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static inline long PTR_ERR(const void *ptr)
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{
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return (long) ptr;
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}
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static inline bool IS_ERR(const void *ptr)
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{
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return IS_ERR_VALUE((unsigned long)ptr);
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}
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static inline bool IS_ERR_OR_NULL(const void *ptr)
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{
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return (!ptr) || IS_ERR_VALUE((unsigned long)ptr);
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}
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static inline long PTR_ERR_OR_ZERO(const void *ptr)
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{
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return IS_ERR(ptr) ? PTR_ERR(ptr) : 0;
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}
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#endif
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