diff options
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/signal.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 80da0cdac662..cdfe52b15a0a 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -149,22 +149,18 @@ static int preserve_vfp_context(struct vfp_sigframe __user *frame) static int restore_vfp_context(char __user **auxp) { - struct vfp_sigframe __user *frame = - (struct vfp_sigframe __user *)*auxp; - unsigned long magic; - unsigned long size; - int err = 0; - - __get_user_error(magic, &frame->magic, err); - __get_user_error(size, &frame->size, err); + struct vfp_sigframe frame; + int err; + err = __copy_from_user(&frame, *auxp, sizeof(frame)); if (err) - return -EFAULT; - if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE) + return err; + + if (frame.magic != VFP_MAGIC || frame.size != VFP_STORAGE_SIZE) return -EINVAL; - *auxp += size; - return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc); + *auxp += sizeof(frame); + return vfp_restore_user_hwstate(&frame.ufp, &frame.ufp_exc); } #endif |