1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/cdrom/mcdx.c b/drivers/cdrom/mcdx.c
index 07bbd24e3c18..b89420e6d704 100644
--- a/drivers/cdrom/mcdx.c
+++ b/drivers/cdrom/mcdx.c
@@ -51,7 +51,7 @@
  */
 
 
-#if RCS
+#ifdef RCS
 static const char *mcdx_c_version
     = "$Id: mcdx.c,v 1.21 1997/01/26 07:12:59 davem Exp $";
 #endif
@@ -706,7 +706,7 @@ static int mcdx_open(struct cdrom_device_info *cdi, int purpose)
                 xtrace(OPENCLOSE, "open() init irq generation\n");
                 if (-1 == mcdx_config(stuffp, 1))
                         return -EIO;
-#if FALLBACK
+#ifdef FALLBACK
                 /* Set the read speed */
                 xwarn("AAA %x AAA\n", stuffp->readcmd);
                 if (stuffp->readerrs)
@@ -1216,7 +1216,7 @@ static int __init mcdx_init_drive(int drive)
         }
 
 
-#if WE_KNOW_WHY
+#ifdef WE_KNOW_WHY
         /* irq 11 -> channel register */
         outb(0x50, stuffp->wreg_chn);
 #endif
@@ -1294,7 +1294,7 @@ static int mcdx_transfer(struct s_drive_stuff *stuffp,
 
         ans = mcdx_xfer(stuffp, p, sector, nr_sectors);
         return ans;
-#if FALLBACK
+#ifdef FALLBACK
         if (-1 == ans)
                 stuffp->readerrs++;
         else