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authorPeter Oberparleiter <peter.oberparleiter@de.ibm.com>2009-12-07 12:51:30 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2009-12-07 12:51:31 +0100
commit454e1fa1ebae7cff707b2e3f12b775c263c8408b (patch)
treeeab290fcacd6faaf7e01e3a637cb9678bb367c66 /drivers/s390/char
parent4257aaecffab77bad43e12057f56a5590b360f9f (diff)
[S390] cio: split PGID settings and status
Split setting (driver wants feature enabled) and status (feature setup was successful) for PGID related ccw device features so that setup errors can be detected. Previously, incorrectly handled setup errors could in rare cases lead to erratic I/O behavior and permanently unusuable devices. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char')
-rw-r--r--drivers/s390/char/tape_core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index 5cd31e07164..27503a778fc 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -579,7 +579,8 @@ tape_generic_probe(struct ccw_device *cdev)
device = tape_alloc_device();
if (IS_ERR(device))
return -ENODEV;
- ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP);
+ ccw_device_set_options(cdev, CCWDEV_DO_PATHGROUP |
+ CCWDEV_DO_MULTIPATH);
ret = sysfs_create_group(&cdev->dev.kobj, &tape_attr_group);
if (ret) {
tape_put_device(device);