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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2013-06-27 23:00:25 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2013-06-27 23:00:25 -0700
commit31881d74b6dd1a6c530cff61248def4f2da38bee (patch)
treebe62420cf39192074e13b25553d172b9d5e58a33 /drivers/scsi/st.c
parent8855f30cd2b68012571932c7b01290c20be4508c (diff)
parent257867dc8d893690c175c1f717f91c3b6d44a63d (diff)
Merge branch 'for-next' of git://github.com/rydberg/linux into next
Pull in changes from Henrik: "a trivial MT documentation fix".
Diffstat (limited to 'drivers/scsi/st.c')
-rw-r--r--drivers/scsi/st.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 86974471af68..2a32036a9404 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4112,6 +4112,10 @@ static int st_probe(struct device *dev)
tpnt->disk = disk;
disk->private_data = &tpnt->driver;
disk->queue = SDp->request_queue;
+ /* SCSI tape doesn't register this gendisk via add_disk(). Manually
+ * take queue reference that release_disk() expects. */
+ if (!blk_get_queue(disk->queue))
+ goto out_put_disk;
tpnt->driver = &st_template;
tpnt->device = SDp;
@@ -4185,7 +4189,7 @@ static int st_probe(struct device *dev)
idr_preload_end();
if (error < 0) {
pr_warn("st: idr allocation failed: %d\n", error);
- goto out_put_disk;
+ goto out_put_queue;
}
tpnt->index = error;
sprintf(disk->disk_name, "st%d", tpnt->index);
@@ -4211,6 +4215,8 @@ out_remove_devs:
spin_lock(&st_index_lock);
idr_remove(&st_index_idr, tpnt->index);
spin_unlock(&st_index_lock);
+out_put_queue:
+ blk_put_queue(disk->queue);
out_put_disk:
put_disk(disk);
kfree(tpnt);