diff options
Diffstat (limited to 'arch/i386/math-emu/fpu_entry.c')
| -rw-r--r-- | arch/i386/math-emu/fpu_entry.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/i386/math-emu/fpu_entry.c b/arch/i386/math-emu/fpu_entry.c index d93f16ef828..ddf8fa3bbd0 100644 --- a/arch/i386/math-emu/fpu_entry.c +++ b/arch/i386/math-emu/fpu_entry.c @@ -742,7 +742,8 @@ int save_i387_soft(void *s387, struct _fpstate __user * buf) S387->fcs &= ~0xf8000000; S387->fos |= 0xffff0000; #endif /* PECULIAR_486 */ - __copy_to_user(d, &S387->cwd, 7*4); + if (__copy_to_user(d, &S387->cwd, 7*4)) + return -1; RE_ENTRANT_CHECK_ON; d += 7*4; |