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Diffstat (limited to 'drivers/s390/block/dasd_ioctl.c')
-rw-r--r--drivers/s390/block/dasd_ioctl.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 789595b3fa09..044b75371990 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -7,7 +7,7 @@
* Bugreports.to..: <Linux390@de.ibm.com>
* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999-2001
*
- * $Revision: 1.47 $
+ * $Revision: 1.50 $
*
* i/o controls for the dasd driver.
*/
@@ -352,6 +352,9 @@ dasd_ioctl_read_profile(struct block_device *bdev, int no, long args)
if (device == NULL)
return -ENODEV;
+ if (dasd_profile_level == DASD_PROFILE_OFF)
+ return -EIO;
+
if (copy_to_user((long __user *) args, (long *) &device->profile,
sizeof (struct dasd_profile_info_t)))
return -EFAULT;