[PATCH rdma-next] RDMA/core: Annotate destroy of mutex to ensure that it is released as unlocked

[Leon Romanovsky <leon@kernel.org>]

From: Parav Pandit <parav@mellanox.com>

While compiled with CONFIG_DEBUG_MUTEXES, the kernel ensures that mutex
is not held during destroy.
Hence add mutex_destroy() for mutexes used in RDMA modules.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
 drivers/infiniband/core/cache.c        | 1 +
 drivers/infiniband/core/cma_configfs.c | 1 +
 drivers/infiniband/core/device.c       | 3 +++
 drivers/infiniband/core/user_mad.c     | 2 +-
 drivers/infiniband/core/uverbs_main.c  | 2 ++
 drivers/infiniband/core/verbs.c        | 1 +
 6 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 18e476b3ced0..00fb3eacda19 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -810,6 +810,7 @@ static void release_gid_table(struct ib_device *device,
 	if (leak)
 		return;
 
+	mutex_destroy(&table->lock);
 	kfree(table->data_vec);
 	kfree(table);
 }
diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c
index 3ec2c415bb70..0a7b5eba2fc0 100644
--- a/drivers/infiniband/core/cma_configfs.c
+++ b/drivers/infiniband/core/cma_configfs.c
@@ -350,4 +350,5 @@ int __init cma_configfs_init(void)
 void __exit cma_configfs_exit(void)
 {
 	configfs_unregister_subsystem(&cma_subsys);
+	mutex_destroy(&cma_subsys.su_mutex);
 }
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 7f4affe8a10d..adf8d93bb42d 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -508,6 +508,9 @@ static void ib_device_release(struct device *device)
 			  rcu_head);
 	}
 
+	mutex_destroy(&dev->unregistration_lock);
+	mutex_destroy(&dev->compat_devs_mutex);
+
 	xa_destroy(&dev->compat_devs);
 	xa_destroy(&dev->client_data);
 	kfree_rcu(dev, rcu_head);
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 9f8a48016b41..e0512aef033c 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -1038,7 +1038,7 @@ static int ib_umad_close(struct inode *inode, struct file *filp)
 				ib_unregister_mad_agent(file->agent[i]);
 
 	mutex_unlock(&file->port->file_mutex);
-
+	mutex_destroy(&file->mutex);
 	kfree(file);
 	return 0;
 }
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 11c13c1381cf..4827aa3415ff 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -120,6 +120,8 @@ static void ib_uverbs_release_dev(struct device *device)
 
 	uverbs_destroy_api(dev->uapi);
 	cleanup_srcu_struct(&dev->disassociate_srcu);
+	mutex_destroy(&dev->lists_mutex);
+	mutex_destroy(&dev->xrcd_tree_mutex);
 	kfree(dev);
 }
 
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 92349bf37589..f974b6854224 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -2259,6 +2259,7 @@ int ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata)
 		if (ret)
 			return ret;
 	}
+	mutex_destroy(&xrcd->tgt_qp_mutex);
 
 	return xrcd->device->ops.dealloc_xrcd(xrcd, udata);
 }
-- 
2.20.1