ieee1394: lock smaller region by host_num_alloc mutex

We need the mutex only around the iteration over existing hosts.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c
index b935e08695a9..25573bad81e0 100644
--- a/drivers/ieee1394/hosts.c
+++ b/drivers/ieee1394/hosts.c
@@ -157,10 +157,9 @@ struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
         h->speed_map = (u8 *)(h->csr.speed_map + 2);
 
         mutex_lock(&host_num_alloc);
-
         while (nodemgr_for_each_host(&hostnum, alloc_hostnum_cb))
                 hostnum++;
-
+        mutex_unlock(&host_num_alloc);
         h->id = hostnum;
 
         memcpy(&h->device, &nodemgr_dev_template_host, sizeof(h->device));
@@ -175,8 +174,6 @@ struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra,
         class_device_register(&h->class_dev);
         get_device(&h->device);
 
-        mutex_unlock(&host_num_alloc);
-
         return h;
 }