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-rw-r--r--drivers/block/loop.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 63008e879771..3de2cd94225a 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1641,12 +1641,15 @@ out:
return err;
}
-static void __lo_release(struct loop_device *lo)
+static void lo_release(struct gendisk *disk, fmode_t mode)
{
+ struct loop_device *lo;
int err;
+ mutex_lock(&loop_index_mutex);
+ lo = disk->private_data;
if (atomic_dec_return(&lo->lo_refcnt))
- return;
+ goto unlock_index;
mutex_lock(&loop_ctl_mutex);
if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) {
@@ -1656,7 +1659,7 @@ static void __lo_release(struct loop_device *lo)
*/
err = loop_clr_fd(lo);
if (!err)
- return;
+ goto unlock_index;
} else if (lo->lo_state == Lo_bound) {
/*
* Otherwise keep thread (if running) and config,
@@ -1667,12 +1670,7 @@ static void __lo_release(struct loop_device *lo)
}
mutex_unlock(&loop_ctl_mutex);
-}
-
-static void lo_release(struct gendisk *disk, fmode_t mode)
-{
- mutex_lock(&loop_index_mutex);
- __lo_release(disk->private_data);
+unlock_index:
mutex_unlock(&loop_index_mutex);
}