powerpc: Simplify do_sigbus

Exit out early for a kernel fault, avoiding indenting of
most of the function.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 10 insertions, 10 deletions

diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 51ab9e7e6c39..abc8c816a326 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -120,16 +120,16 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address)
 
         up_read(&current->mm->mmap_sem);
 
-        if (user_mode(regs)) {
-                current->thread.trap_nr = BUS_ADRERR;
-                info.si_signo = SIGBUS;
-                info.si_errno = 0;
-                info.si_code = BUS_ADRERR;
-                info.si_addr = (void __user *)address;
-                force_sig_info(SIGBUS, &info, current);
-                return MM_FAULT_RETURN;
-        }
-        return MM_FAULT_ERR(SIGBUS);
+        if (!user_mode(regs))
+                return MM_FAULT_ERR(SIGBUS);
+
+        current->thread.trap_nr = BUS_ADRERR;
+        info.si_signo = SIGBUS;
+        info.si_errno = 0;
+        info.si_code = BUS_ADRERR;
+        info.si_addr = (void __user *)address;
+        force_sig_info(SIGBUS, &info, current);
+        return MM_FAULT_RETURN;
 }
 
 static int mm_fault_error(struct pt_regs *regs, unsigned long addr, int fault)