1 files changed, 26 insertions, 32 deletions

diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 4dab7e417ba9..19cb97733937 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -1,27 +1,16 @@
 /*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
-#include "linux/stddef.h"
-#include "linux/sys.h"
-#include "linux/sched.h"
-#include "linux/wait.h"
-#include "linux/kernel.h"
-#include "linux/smp_lock.h"
 #include "linux/module.h"
-#include "linux/slab.h"
-#include "linux/tty.h"
-#include "linux/binfmts.h"
 #include "linux/ptrace.h"
+#include "linux/sched.h"
+#include "asm/siginfo.h"
 #include "asm/signal.h"
-#include "asm/uaccess.h"
 #include "asm/unistd.h"
-#include "asm/ucontext.h"
-#include "kern_util.h"
-#include "signal_kern.h"
-#include "kern.h"
 #include "frame_kern.h"
+#include "kern_util.h"
 #include "sigcontext.h"
 
 EXPORT_SYMBOL(block_signals);
@@ -45,9 +34,9 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
 	/* Did we come from a system call? */
-	if(PT_REGS_SYSCALL_NR(regs) >= 0){
+	if (PT_REGS_SYSCALL_NR(regs) >= 0) {
 		/* If so, check system call restarting.. */
-		switch(PT_REGS_SYSCALL_RET(regs)){
+		switch(PT_REGS_SYSCALL_RET(regs)) {
 		case -ERESTART_RESTARTBLOCK:
 		case -ERESTARTNOHAND:
 			PT_REGS_SYSCALL_RET(regs) = -EINTR;
@@ -67,17 +56,17 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
 	}
 
 	sp = PT_REGS_SP(regs);
-	if((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0))
+	if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0))
 		sp = current->sas_ss_sp + current->sas_ss_size;
 
 #ifdef CONFIG_ARCH_HAS_SC_SIGNALS
-	if(!(ka->sa.sa_flags & SA_SIGINFO))
+	if (!(ka->sa.sa_flags & SA_SIGINFO))
 		err = setup_signal_stack_sc(sp, signr, ka, regs, oldset);
 	else
 #endif
 		err = setup_signal_stack_si(sp, signr, ka, regs, info, oldset);
 
-	if(err){
+	if (err) {
 		spin_lock_irq(&current->sighand->siglock);
 		current->blocked = *oldset;
 		recalc_sigpending();
@@ -87,7 +76,7 @@ static int handle_signal(struct pt_regs *regs, unsigned long signr,
 		spin_lock_irq(&current->sighand->siglock);
 		sigorsets(&current->blocked, &current->blocked,
 			  &ka->sa.sa_mask);
-		 if(!(ka->sa.sa_flags & SA_NODEFER))
+		if (!(ka->sa.sa_flags & SA_NODEFER))
 			sigaddset(&current->blocked, signr);
 		recalc_sigpending();
 		spin_unlock_irq(&current->sighand->siglock);
@@ -108,14 +97,16 @@ static int kern_do_signal(struct pt_regs *regs)
 	else
 		oldset = &current->blocked;
 
-	while((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0){
+	while ((sig = get_signal_to_deliver(&info, &ka_copy, regs, NULL)) > 0) {
 		handled_sig = 1;
 		/* Whee!  Actually deliver the signal.  */
-		if(!handle_signal(regs, sig, &ka_copy, &info, oldset)){
-			/* a signal was successfully delivered; the saved
+		if (!handle_signal(regs, sig, &ka_copy, &info, oldset)) {
+			/*
+			 * a signal was successfully delivered; the saved
 			 * sigmask will have been stored in the signal frame,
 			 * and will be restored by sigreturn, so we can simply
-			 * clear the TIF_RESTORE_SIGMASK flag */
+			 * clear the TIF_RESTORE_SIGMASK flag
+			 */
 			if (test_thread_flag(TIF_RESTORE_SIGMASK))
 				clear_thread_flag(TIF_RESTORE_SIGMASK);
 			break;
@@ -123,9 +114,9 @@ static int kern_do_signal(struct pt_regs *regs)
 	}
 
 	/* Did we come from a system call? */
-	if(!handled_sig && (PT_REGS_SYSCALL_NR(regs) >= 0)){
+	if (!handled_sig && (PT_REGS_SYSCALL_NR(regs) >= 0)) {
 		/* Restart the system call - no handlers present */
-		switch(PT_REGS_SYSCALL_RET(regs)){
+		switch(PT_REGS_SYSCALL_RET(regs)) {
 		case -ERESTARTNOHAND:
 		case -ERESTARTSYS:
 		case -ERESTARTNOINTR:
@@ -136,22 +127,25 @@ static int kern_do_signal(struct pt_regs *regs)
 			PT_REGS_ORIG_SYSCALL(regs) = __NR_restart_syscall;
 			PT_REGS_RESTART_SYSCALL(regs);
 			break;
- 		}
+		}
 	}
 
-	/* This closes a way to execute a system call on the host.  If
+	/*
+	 * This closes a way to execute a system call on the host.  If
 	 * you set a breakpoint on a system call instruction and singlestep
 	 * from it, the tracing thread used to PTRACE_SINGLESTEP the process
 	 * rather than PTRACE_SYSCALL it, allowing the system call to execute
 	 * on the host.  The tracing thread will check this flag and
 	 * PTRACE_SYSCALL if necessary.
 	 */
-	if(current->ptrace & PT_DTRACE)
+	if (current->ptrace & PT_DTRACE)
 		current->thread.singlestep_syscall =
 			is_syscall(PT_REGS_IP(&current->thread.regs));
 
-	/* if there's no signal to deliver, we just put the saved sigmask
-	 * back */
+	/*
+	 * if there's no signal to deliver, we just put the saved sigmask
+	 * back
+	 */
 	if (!handled_sig && test_thread_flag(TIF_RESTORE_SIGMASK)) {
 		clear_thread_flag(TIF_RESTORE_SIGMASK);
 		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);