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Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
22 lines
489 B
C
22 lines
489 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2013 Richard Weinberger <richrd@nod.at>
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*/
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#include <linux/uaccess.h>
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#include <linux/kernel.h>
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#include <os.h>
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long probe_kernel_read(void *dst, const void *src, size_t size)
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{
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void *psrc = (void *)rounddown((unsigned long)src, PAGE_SIZE);
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if ((unsigned long)src < PAGE_SIZE || size <= 0)
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return -EFAULT;
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if (os_mincore(psrc, size + src - psrc) <= 0)
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return -EFAULT;
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return __probe_kernel_read(dst, src, size);
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}
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