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Commit 9a7af289 authored by Horst Hummel's avatar Horst Hummel Committed by Linus Torvalds
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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: default avatarHorst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent cfb1b555

drivers/s390/block/dasd_ioctl.c

+4 −1
Original line number Diff line number Diff line
@@ -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;