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| author | Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> | 2008-11-14 03:06:04 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-18 22:28:58 +0100 |
| commit | 20a4a236c7de5c915551cdc562482aa53eaff40e (patch) | |
| tree | a801472196c4cb994309d767c15c90317e05cf0c /arch/x86/include/asm | |
| parent | x86: quirk for reboot stalls on a Dell Optiplex 330 (diff) | |
| download | linux-20a4a236c7de5c915551cdc562482aa53eaff40e.tar.xz linux-20a4a236c7de5c915551cdc562482aa53eaff40e.zip | |
x86: uaccess_64: fix return value in __copy_from_user()
__copy_from_user() will return invalid value 16 when it fails to
access user space and the size is 10.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/uaccess_64.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index 664f15280f14..f8cfd00db450 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -46,7 +46,7 @@ int __copy_from_user(void *dst, const void __user *src, unsigned size) return ret; case 10: __get_user_asm(*(u64 *)dst, (u64 __user *)src, - ret, "q", "", "=r", 16); + ret, "q", "", "=r", 10); if (unlikely(ret)) return ret; __get_user_asm(*(u16 *)(8 + (char *)dst), |