[S390] exec_protect: Fix incorrect extern declarations.

sys_sigreturn and sys_rt_sigreturn don't take any arguments. So luckily
this resulted only in unneeded instead of incorrect code.
But still this clearly shows why one should not put extern declarations
in C files (will be fixed with a larger sparse patch).

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index ed13d429a487d01c4cf927b6d7cfc4a7e519faf9..a9c635f01db85d69cf27aa47d07ee49148fa1d82 100644 (file)
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -245,10 +245,10 @@ static void do_sigbus(struct pt_regs *regs, unsigned long error_code,
 }
 
 #ifdef CONFIG_S390_EXEC_PROTECT
-extern long sys_sigreturn(struct pt_regs *regs);
-extern long sys_rt_sigreturn(struct pt_regs *regs);
-extern long sys32_sigreturn(struct pt_regs *regs);
-extern long sys32_rt_sigreturn(struct pt_regs *regs);
+extern long sys_sigreturn(void);
+extern long sys_rt_sigreturn(void);
+extern long sys32_sigreturn(void);
+extern long sys32_rt_sigreturn(void);
 
 static int signal_return(struct mm_struct *mm, struct pt_regs *regs,
                         unsigned long address, unsigned long error_code)
@@ -270,15 +270,15 @@ static int signal_return(struct mm_struct *mm, struct pt_regs *regs,
 #ifdef CONFIG_COMPAT
        compat = test_tsk_thread_flag(current, TIF_31BIT);
        if (compat && instruction == 0x0a77)
-               sys32_sigreturn(regs);
+               sys32_sigreturn();
        else if (compat && instruction == 0x0aad)
-               sys32_rt_sigreturn(regs);
+               sys32_rt_sigreturn();
        else
 #endif
        if (instruction == 0x0a77)
-               sys_sigreturn(regs);
+               sys_sigreturn();
        else if (instruction == 0x0aad)
-               sys_rt_sigreturn(regs);
+               sys_rt_sigreturn();
        else {
                current->thread.prot_addr = address;
                current->thread.trap_no = error_code;