diff options
| -rw-r--r-- | drivers/md/dm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index adb874c2411b..dcfa1a8c9390 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2711,11 +2711,15 @@ struct mapped_device *dm_get_from_kobject(struct kobject *kobj) md = container_of(kobj, struct mapped_device, kobj_holder.kobj); - if (test_bit(DMF_FREEING, &md->flags) || - dm_deleting_md(md)) - return NULL; - + spin_lock(&_minor_lock); + if (test_bit(DMF_FREEING, &md->flags) || dm_deleting_md(md)) { + md = NULL; + goto out; + } dm_get(md); +out: + spin_unlock(&_minor_lock); + return md; } |