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f279e1d916
In cmd/regulator.c an error occurs with GCC 9.2.1 if CONFIG_ERRNO_STR is
not defined:
cmd/regulator.c: In function ‘failure’:
cmd/regulator.c:20:2: error: ‘%s’ directive argument is null
[-Werror=format-overflow=]
20 | printf("Error: %d (%s)\n", ret, errno_str(ret));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘constraint’,
inlined from ‘constraint’ at cmd/regulator.c:111:12:
cmd/regulator.c:115:3: error: ‘%s’ directive argument is null
[-Werror=format-overflow=]
115 | printf(" %s (err: %d)\n", errno_str(val), val);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
errno_str() should return a valid string instead of NULL if
CONFIG_ERRNO_STR is not defined.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
33 lines
700 B
C
33 lines
700 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2014 Samsung Electronics
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* Przemyslaw Marczak <p.marczak@samsung.com>
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*/
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#ifndef _ERRNO_H
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#define _ERRNO_H
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#include <linux/errno.h>
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extern int errno;
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#define __set_errno(val) do { errno = val; } while (0)
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/**
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* errno_str() - get description for error number
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*
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* @errno: error number (negative in case of error)
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* Return: string describing the error. If CONFIG_ERRNO_STR is not
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* defined an empty string is returned.
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*/
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#ifdef CONFIG_ERRNO_STR
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const char *errno_str(int errno);
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#else
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static const char error_message[] = "";
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static inline const char *errno_str(int errno)
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{
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return error_message;
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}
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#endif
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#endif /* _ERRNO_H */
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