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-rw-r--r--block/genhd.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 5a8d3bf02f1..d9657258962 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -182,6 +182,7 @@ static int exact_lock(dev_t dev, void *data)
*/
void add_disk(struct gendisk *disk)
{
+ get_device(disk->driverfs_dev);
disk->flags |= GENHD_FL_UP;
blk_register_region(MKDEV(disk->major, disk->first_minor),
disk->minors, NULL, exact_match, exact_lock, disk);
@@ -427,6 +428,7 @@ static struct attribute * default_attrs[] = {
static void disk_release(struct kobject * kobj)
{
struct gendisk *disk = to_disk(kobj);
+ put_device(disk->driverfs_dev);
kfree(disk->random);
kfree(disk->part);
free_disk_stats(disk);