diff options
Diffstat (limited to 'arch/arm/vfp/vfpmodule.c')
| -rw-r--r-- | arch/arm/vfp/vfpmodule.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index dc7e6b50ef67..aff6e6eadc70 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -216,13 +216,6 @@ static struct notifier_block vfp_notifier_block = { */ static void vfp_raise_sigfpe(unsigned int sicode, struct pt_regs *regs) { - siginfo_t info; - - clear_siginfo(&info); - info.si_signo = SIGFPE; - info.si_code = sicode; - info.si_addr = (void __user *)(instruction_pointer(regs) - 4); - /* * This is the same as NWFPE, because it's not clear what * this is used for @@ -230,7 +223,9 @@ static void vfp_raise_sigfpe(unsigned int sicode, struct pt_regs *regs) current->thread.error_code = 0; current->thread.trap_no = 6; - send_sig_info(SIGFPE, &info, current); + send_sig_fault(SIGFPE, sicode, + (void __user *)(instruction_pointer(regs) - 4), + current); } static void vfp_panic(char *reason, u32 inst) @@ -553,12 +548,11 @@ void vfp_flush_hwstate(struct thread_info *thread) * Save the current VFP state into the provided structures and prepare * for entry into a new function (signal handler). */ -int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, - struct user_vfp_exc __user *ufp_exc) +int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp, + struct user_vfp_exc *ufp_exc) { struct thread_info *thread = current_thread_info(); struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; - int err = 0; /* Ensure that the saved hwstate is up-to-date. */ vfp_sync_hwstate(thread); @@ -567,22 +561,19 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, * Copy the floating point registers. There can be unused * registers see asm/hwcap.h for details. */ - err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs, - sizeof(hwstate->fpregs)); + memcpy(&ufp->fpregs, &hwstate->fpregs, sizeof(hwstate->fpregs)); + /* * Copy the status and control register. */ - __put_user_error(hwstate->fpscr, &ufp->fpscr, err); + ufp->fpscr = hwstate->fpscr; /* * Copy the exception registers. */ - __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err); - __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); - __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err); - - if (err) - return -EFAULT; + ufp_exc->fpexc = hwstate->fpexc; + ufp_exc->fpinst = hwstate->fpinst; + ufp_exc->fpinst2 = ufp_exc->fpinst2; /* Ensure that VFP is disabled. */ vfp_flush_hwstate(thread); |