[SCSI] st: Fixup -ENOMEDIUM

Based on the original patch from Hannes Reinecke <hare@suse.de>

Fix st_open() to return -ENOMEDIUM instead of -EIO if no medium is
found.

Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 3babdc76b3fb..e1a52c525ed4 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -1177,7 +1177,10 @@ static int st_open(struct inode *inode, struct file *filp)
                 goto err_out;
         if ((filp->f_flags & O_NONBLOCK) == 0 &&
             retval != CHKRES_READY) {
-                retval = (-EIO);
+                if (STp->ready == NO_TAPE)
+                        retval = (-ENOMEDIUM);
+                else
+                        retval = (-EIO);
                 goto err_out;
         }
         return 0;