[PATCH 09/16] efi_driver: efi_uclass: Add unbind method to efi_driver_ops

[Adriano Cordova]

Signed-off-by: Adriano Cordova <adriano.cordova at canonical.com>
---
 include/efi_driver.h        | 4 ++++
 lib/efi_driver/efi_uclass.c | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/include/efi_driver.h b/include/efi_driver.h
index 63a95e4cf80..8f785f79459 100644
--- a/include/efi_driver.h
+++ b/include/efi_driver.h
@@ -36,6 +36,8 @@ struct efi_driver_binding_extended_protocol {
  *			driver binding protocol.
  * @bind:		Function called by the EFI uclass to attach the
  *			driver to EFI driver to a handle.
+ * @unbind:		Function called by the EFI uclass to detach the
+ *			driver to EFI driver to a handle.
  */
 struct efi_driver_ops {
 	const efi_guid_t *protocol;
@@ -43,6 +45,8 @@ struct efi_driver_ops {
 	efi_status_t (*init)(struct efi_driver_binding_extended_protocol *this);
 	efi_status_t (*bind)(struct efi_driver_binding_extended_protocol *this,
 			     efi_handle_t handle, void *interface);
+	efi_status_t (*unbind)(struct efi_driver_binding_extended_protocol *this,
+			       efi_handle_t handle);
 };
 
 #endif /* _EFI_DRIVER_H */
diff --git a/lib/efi_driver/efi_uclass.c b/lib/efi_driver/efi_uclass.c
index fc8808374a1..36a86817eb7 100644
--- a/lib/efi_driver/efi_uclass.c
+++ b/lib/efi_driver/efi_uclass.c
@@ -249,6 +249,10 @@ static efi_status_t EFIAPI efi_uc_stop(
 	if (ret != EFI_SUCCESS)
 		log_err("Cannot free EFI memory pool\n");
 
+	ret = bp->ops->unbind(bp, controller_handle);
+	if (ret != EFI_SUCCESS)
+		goto out;
+
 	/* Detach driver from controller */
 	ret = efi_close_protocol(controller_handle, bp->ops->protocol,
 				 this->driver_binding_handle,
-- 
2.48.1