From: Horst Hummel <[email protected]>
[patch 4/17] s390: BIODASDPRRD ioctl return code.
The IOCTL BIODASDPRRD had no return code for 'profiling is
inactive' and therefore tunedasd wrote misleading message for
request-counter = 0.
Introduce return-code EIO for inactive profiling.
Signed-off-by: Horst Hummel <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
---
drivers/s390/block/dasd_ioctl.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
diff -urpN linux-2.6/drivers/s390/block/dasd_ioctl.c linux-2.6-patched/drivers/s390/block/dasd_ioctl.c
--- linux-2.6/drivers/s390/block/dasd_ioctl.c 2005-10-28 02:02:08.000000000 +0200
+++ linux-2.6-patched/drivers/s390/block/dasd_ioctl.c 2005-12-09 14:24:23.000000000 +0100
@@ -7,7 +7,7 @@
* Bugreports.to..: <[email protected]>
* (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_dev
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;