target-mips: Fix warning caused by unused local variable

Fix compilation with gcc-4.6, based on a patch from Stefan
Weil <weil@mail.berlios.de>.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

target-mips/helper.c

@@ -272,8 +272,8 @@ int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
 #if !defined(CONFIG_USER_ONLY)
     target_phys_addr_t physical;
     int prot;
-#endif
     int access_type;
+#endif
     int ret = 0;
 
 #if 0
@@ -285,21 +285,19 @@ int cpu_mips_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
     rw &= 1;
 
     /* data access */
+#if !defined(CONFIG_USER_ONLY)
     /* XXX: put correct access by using cpu_restore_state()
        correctly */
     access_type = ACCESS_INT;
-#if defined(CONFIG_USER_ONLY)
-    ret = TLBRET_NOMATCH;
-#else
     ret = get_physical_address(env, &physical, &prot,
                                address, rw, access_type);
     qemu_log("%s address=" TARGET_FMT_lx " ret %d physical " TARGET_FMT_plx " prot %d\n",
               __func__, address, ret, physical, prot);
     if (ret == TLBRET_MATCH) {
-       tlb_set_page(env, address & TARGET_PAGE_MASK,
-                    physical & TARGET_PAGE_MASK, prot | PAGE_EXEC,
-                    mmu_idx, TARGET_PAGE_SIZE);
-       ret = 0;
+        tlb_set_page(env, address & TARGET_PAGE_MASK,
+                     physical & TARGET_PAGE_MASK, prot | PAGE_EXEC,
+                     mmu_idx, TARGET_PAGE_SIZE);
+        ret = 0;
     } else if (ret < 0)
 #endif
     {