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authorTakashi Iwai <tiwai@suse.de>2009-05-12 11:57:09 +0200
committerTakashi Iwai <tiwai@suse.de>2009-05-12 11:57:09 +0200
commitddc4097b77bbb227851a44287acb2fb8a9896cc1 (patch)
tree319d098879bed7c45543d983de8becd509701b22 /drivers/s390/scsi/zfcp_sysfs.c
parentbec4c99e8637b5b8bd4b0513eacb51da25885e3b (diff)
parentae31c1fbdbb18d917b0a1139497c2dbd35886989 (diff)
Merge branch 'topic/drvdata-fix' into topic/asoc
Diffstat (limited to 'drivers/s390/scsi/zfcp_sysfs.c')
-rw-r--r--drivers/s390/scsi/zfcp_sysfs.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 9a3b8e261c0..3e51e64d110 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -254,12 +254,21 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
write_lock_irq(&zfcp_data.config_lock);
unit = zfcp_get_unit_by_lun(port, fcp_lun);
- if (unit && (atomic_read(&unit->refcount) == 0)) {
- zfcp_unit_get(unit);
- atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &unit->status);
- list_move(&unit->list, &unit_remove_lh);
- } else
- unit = NULL;
+ if (unit) {
+ write_unlock_irq(&zfcp_data.config_lock);
+ /* wait for possible timeout during SCSI probe */
+ flush_work(&unit->scsi_work);
+ write_lock_irq(&zfcp_data.config_lock);
+
+ if (atomic_read(&unit->refcount) == 0) {
+ zfcp_unit_get(unit);
+ atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE,
+ &unit->status);
+ list_move(&unit->list, &unit_remove_lh);
+ } else {
+ unit = NULL;
+ }
+ }
write_unlock_irq(&zfcp_data.config_lock);