ide-disk_proc: use macro to replace magic number

Signed-off-by: Xinghai Yu <yuxinghai@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 4d19eb9..6233fa2c 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -141,8 +141,8 @@
 	if (args[0] == ATA_CMD_SMART) {
 		tf->nsect = args[3];
 		tf->lbal  = args[1];
-		tf->lbam  = 0x4f;
-		tf->lbah  = 0xc2;
+		tf->lbam  = ATA_SMART_LBAM_PASS;
+		tf->lbah  = ATA_SMART_LBAH_PASS;
 		cmd.valid.out.tf = IDE_VALID_OUT_TF;
 		cmd.valid.in.tf  = IDE_VALID_NSECT;
 	} else {