ioctl32 fix to SG_IO

A minor bug fix to the ioctl32 code handling SG_IO. sgio->dxferp is not initialzed properly.

-Arun

@@ -1029,6 +1029,7 @@
 			return -EFAULT;
 	}
 
+	sgio->dxferp = iov;
 	return 0;
 }