ppc64: Fix my overoptimisation of zeroing RESULT. Yes Linus, it

was all my fault.

arch/ppc64/kernel/entry.S

@@ -58,8 +58,6 @@ show_syscalls_task:
  */
 _GLOBAL(DoSyscall)
 	std	r3,ORIG_GPR3(r1)
-	li	r12,0
-	std	r12,RESULT(r1)
 	ld	r11,_CCR(r1)	/* Clear SO bit in CR */
 	lis	r10,0x1000
 	andc	r11,r11,r10

arch/ppc64/kernel/head.S

@@ -1118,6 +1118,12 @@ _GLOBAL(save_remaining_regs)
 	SAVE_4GPRS(16, r1)
 	SAVE_8GPRS(24, r1)
 
+	/*
+	 * Clear the RESULT field
+	 */
+	li	r22,0
+	std	r22,RESULT(r1)
+
 	/*
 	 * Test if from user state; result will be tested later
 	 */