diff options
| -rw-r--r-- | lib/efi_loader/efi_disk.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index 9176008c0e..670bf2b8ef 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -356,6 +356,7 @@ static efi_status_t efi_disk_add_dev( struct efi_disk_obj **disk) { struct efi_disk_obj *diskobj; + struct efi_object *handle; efi_status_t ret; /* Don't add empty devices */ @@ -379,15 +380,25 @@ static efi_status_t efi_disk_add_dev( diskobj->dp = efi_dp_from_part(desc, part); } diskobj->part = part; - ret = efi_add_protocol(&diskobj->header, &efi_block_io_guid, - &diskobj->ops); - if (ret != EFI_SUCCESS) - return ret; - ret = efi_add_protocol(&diskobj->header, &efi_guid_device_path, - diskobj->dp); + + /* + * Install the device path and the block IO protocol. + * + * InstallMultipleProtocolInterfaces() checks if the device path is + * already installed on an other handle and returns EFI_ALREADY_STARTED + * in this case. + */ + handle = &diskobj->header; + ret = EFI_CALL(efi_install_multiple_protocol_interfaces( + &handle, &efi_guid_device_path, diskobj->dp, + &efi_block_io_guid, &diskobj->ops, NULL)); if (ret != EFI_SUCCESS) return ret; - /* partitions or whole disk without partitions */ + + /* + * On partitions or whole disks without partitions install the + * simple file system protocol if a file system is available. + */ if ((part || desc->part_type == PART_TYPE_UNKNOWN) && efi_fs_exists(desc, part)) { diskobj->volume = efi_simple_file_system(desc, part, |