ppc64: ptrace32 fix when tracing 64bit tasks from Will Schmidt

arch/ppc64/kernel/ptrace32.c

@@ -177,8 +177,13 @@ int sys32_ptrace(long request, long pid, unsigned long addr, unsigned long data)
 		if (numReg >= PT_FPR0) {
 			if (child->thread.regs->msr & MSR_FP)
 				giveup_fpu(child);
-		}
-		tmp = get_reg(child, numReg);
+		        if (numReg == PT_FPSCR) 
+			        tmp = ((unsigned int *)child->thread.fpscr);
+		        else 
+			        tmp = ((unsigned long int *)child->thread.fpr)[numReg - PT_FPR0];
+		} else { /* register within PT_REGS struct */
+			tmp = get_reg(child, numReg);
+		} 
 		reg32bits = ((u32*)&tmp)[part];
 		ret = put_user(reg32bits, (u32*)data);
 		break;