Fix PIC32 error in last check-in

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4125 42af7a65-404d-4744-a932-0658087f49c3

arch/mips/src/pic32mx/pic32mx-decodeirq.c

@@ -158,7 +158,7 @@ uint32_t *pic32mx_decodeirq(uint32_t *regs)
       up_ledoff(LED_INIRQ);
     }
 #else
-  current_regs = savestate;
+  current_regs = NULL;
   up_ledoff(LED_INIRQ);
 #endif