efi_loader: EFI_BLOCK_IO_PROTOCOL.Reset()

We cannot do anything in EFI_BLOCK_IO_PROTOCOL.Reset() but this does not
justify to return an error.

Let EFI_BLOCK_IO_PROTOCOL.Reset() return EFI_SUCCESS.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index 4d4937c..9007a5f 100644 (file)
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -41,11 +41,26 @@ struct efi_disk_obj {
        struct blk_desc *desc;
 };
 
+/**
+ * efi_disk_reset() - reset block device
+ *
+ * This function implements the Reset service of the EFI_BLOCK_IO_PROTOCOL.
+ *
+ * As U-Boot's block devices do not have a reset function simply return
+ * EFI_SUCCESS.
+ *
+ * See the Unified Extensible Firmware Interface (UEFI) specification for
+ * details.
+ *
+ * @this:                      pointer to the BLOCK_IO_PROTOCOL
+ * @extended_verification:     extended verification
+ * Return:                     status code
+ */
 static efi_status_t EFIAPI efi_disk_reset(struct efi_block_io *this,
                        char extended_verification)
 {
        EFI_ENTRY("%p, %x", this, extended_verification);
-       return EFI_EXIT(EFI_DEVICE_ERROR);
+       return EFI_EXIT(EFI_SUCCESS);
 }
 
 enum efi_disk_direction {