diff options
| -rw-r--r-- | arch/x86/include/asm/string_64.h | 4 | ||||
| -rw-r--r-- | arch/x86/lib/memcpy_64.S | 7 |
2 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h index ca6ba36..90dbbd9 100644 --- a/arch/x86/include/asm/string_64.h +++ b/arch/x86/include/asm/string_64.h @@ -87,9 +87,9 @@ int strcmp(const char *cs, const char *ct); * * Low level memory copy function that catches machine checks * - * Return true for success, false for fail + * Return 0 for success, -EFAULT for fail */ -bool memcpy_mcsafe(void *dst, const void *src, size_t cnt); +int memcpy_mcsafe(void *dst, const void *src, size_t cnt); #endif /* __KERNEL__ */ diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S index cbb8ee5..2ec0b0abb 100644 --- a/arch/x86/lib/memcpy_64.S +++ b/arch/x86/lib/memcpy_64.S @@ -1,6 +1,7 @@ /* Copyright 2002 Andi Kleen */ #include <linux/linkage.h> +#include <asm/errno.h> #include <asm/cpufeatures.h> #include <asm/alternative-asm.h> @@ -268,16 +269,16 @@ ENTRY(memcpy_mcsafe) decl %ecx jnz .L_copy_trailing_bytes - /* Copy successful. Return true */ + /* Copy successful. Return zero */ .L_done_memcpy_trap: xorq %rax, %rax ret ENDPROC(memcpy_mcsafe) .section .fixup, "ax" - /* Return false for any failure */ + /* Return -EFAULT for any failure */ .L_memcpy_mcsafe_fail: - mov $1, %rax + mov $-EFAULT, %rax ret .previous |
