signal/arc: Use force_sig_fault where appropriate

[ Upstream commit 15773ae938d8d93d982461990bebad6e1d7a1830 ]

Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index f28db0b..a0366f9 100644 (file)
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -66,14 +66,12 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
        struct vm_area_struct *vma = NULL;
        struct task_struct *tsk = current;
        struct mm_struct *mm = tsk->mm;
-       siginfo_t info;
+       int si_code;
        int ret;
        vm_fault_t fault;
        int write = regs->ecr_cause & ECR_C_PROTV_STORE;  /* ST/EX */
        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
 
-       clear_siginfo(&info);
-
        /*
         * We fault-in kernel-space virtual memory on-demand. The
         * 'reference' page table is init_mm.pgd.
@@ -91,7 +89,7 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
                        return;
        }
 
-       info.si_code = SEGV_MAPERR;
+       si_code = SEGV_MAPERR;
 
        /*
         * If we're in an interrupt or have no user
@@ -119,7 +117,7 @@ retry:
         * we can handle it..
         */
 good_area:
-       info.si_code = SEGV_ACCERR;
+       si_code = SEGV_ACCERR;
 
        /* Handle protection violation, execute on heap or stack */
 
@@ -204,11 +202,7 @@ bad_area_nosemaphore:
        /* User mode accesses just cause a SIGSEGV */
        if (user_mode(regs)) {
                tsk->thread.fault_address = address;
-               info.si_signo = SIGSEGV;
-               info.si_errno = 0;
-               /* info.si_code has been set above */
-               info.si_addr = (void __user *)address;
-               force_sig_info(SIGSEGV, &info, tsk);
+               force_sig_fault(SIGSEGV, si_code, (void __user *)address, tsk);
                return;
        }
 
@@ -243,9 +237,5 @@ do_sigbus:
                goto no_context;
 
        tsk->thread.fault_address = address;
-       info.si_signo = SIGBUS;
-       info.si_errno = 0;
-       info.si_code = BUS_ADRERR;
-       info.si_addr = (void __user *)address;
-       force_sig_info(SIGBUS, &info, tsk);
+       force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, tsk);
 }