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[PATCH] 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 <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Horst Hummel 2006-01-06 00:19:14 -08:00 committed by Linus Torvalds
parent cfb1b55595
commit 9a7af28966
1 changed files with 4 additions and 1 deletions
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5
drivers/s390/block/dasd_ioctl.c
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@ -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;