Allow rwlocks to re-enable interrupts

[safe/jmp/linux-2.6] / arch / sh / include / asm / syscall_32.h

diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h
index 54773f2..5bc3468 100644 (file)
--- a/arch/sh/include/asm/syscall_32.h
+++ b/arch/sh/include/asm/syscall_32.h
@@ -5,7 +5,7 @@
 #include <linux/sched.h>
 #include <asm/ptrace.h>
 
-/* The system call number is given by the user in %g1 */
+/* The system call number is given by the user in R3 */
 static inline long syscall_get_nr(struct task_struct *task,
                                  struct pt_regs *regs)
 {
@@ -21,23 +21,10 @@ static inline void syscall_rollback(struct task_struct *task,
         */
 }
 
-static inline bool syscall_has_error(struct pt_regs *regs)
-{
-       return (regs->sr & 0x1) ? true : false;
-}
-static inline void syscall_set_error(struct pt_regs *regs)
-{
-       regs->sr |= 0x1;
-}
-static inline void syscall_clear_error(struct pt_regs *regs)
-{
-       regs->sr &= ~0x1;
-}
-
 static inline long syscall_get_error(struct task_struct *task,
                                     struct pt_regs *regs)
 {
-       return syscall_has_error(regs) ? regs->regs[0] : 0;
+       return IS_ERR_VALUE(regs->regs[0]) ? regs->regs[0] : 0;
 }
 
 static inline long syscall_get_return_value(struct task_struct *task,
@@ -50,13 +37,10 @@ static inline void syscall_set_return_value(struct task_struct *task,
                                            struct pt_regs *regs,
                                            int error, long val)
 {
-       if (error) {
-               syscall_set_error(regs);
+       if (error)
                regs->regs[0] = -error;
-       } else {
-               syscall_clear_error(regs);
+       else
                regs->regs[0] = val;
-       }
 }
 
 static inline void syscall_get_arguments(struct task_struct *task,