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authorHorst Hummel <horst.hummel@de.ibm.com>2006-01-06 00:19:14 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:33:50 -0800
commit9a7af289660dc749d7c58234191601046a9bf488 (patch)
treed32057111e48c3463a87dd3a051c44064eeb86fc
parentcfb1b55595a0dfd87b5849e8d0216c029f34445f (diff)
downloadlinux-linaro-stable-9a7af289660dc749d7c58234191601046a9bf488.tar.gz
[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>
-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;