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-rw-r--r--drivers/nvme/host/fabrics.c3
-rw-r--r--drivers/nvme/host/fabrics.h3
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 5f5f7067c41d..fa32c1216409 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -952,6 +952,7 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
ret = -EBUSY;
goto out_unlock;
}
+ up_read(&nvmf_transports_rwsem);
ret = nvmf_check_required_opts(opts, ops->required_opts);
if (ret)
@@ -968,11 +969,11 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
}
module_put(ops->module);
- up_read(&nvmf_transports_rwsem);
return ctrl;
out_module_put:
module_put(ops->module);
+ goto out_free_opts;
out_unlock:
up_read(&nvmf_transports_rwsem);
out_free_opts:
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index 0cf0460a5c92..7491a0bbf711 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -124,6 +124,9 @@ struct nvmf_ctrl_options {
* 1. At minimum, 'required_opts' and 'allowed_opts' should
* be set to the same enum parsing options defined earlier.
* 2. create_ctrl() must be defined (even if it does nothing)
+ * 3. struct nvmf_transport_ops must be statically allocated in the
+ * modules .bss section so that a pure module_get on @module
+ * prevents the memory from beeing freed.
*/
struct nvmf_transport_ops {
struct list_head entry;