md-cluster: remove inappropriate try_module_get from join()



md_setup_cluster already calls try_module_get(), so this
try_module_get isn't needed.
Also, there is no matching module_put (except in error patch),
so this leaves an unbalanced module count.

Signed-off-by: NeilBrown <neilb@suse.com>

parent 6022e75b

drivers/md/md-cluster.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -687,9 +687,6 @@ static int join(struct mddev *mddev, int nodes)
		int ret, ops_rv;
		char str[64];

		if (!try_module_get(THIS_MODULE))
		return -ENOENT;

		cinfo = kzalloc(sizeof(struct md_cluster_info), GFP_KERNEL);
		if (!cinfo)
		return -ENOMEM;
		@@ -771,7 +768,6 @@ err:
		dlm_release_lockspace(cinfo->lockspace, 2);
		mddev->cluster_info = NULL;
		kfree(cinfo);
		module_put(THIS_MODULE);
		return ret;
		}