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authorHeinrich Schuchardt <heinrich.schuchardt@canonical.com>2022-10-07 12:03:01 +0300
committerHeinrich Schuchardt <heinrich.schuchardt@canonical.com>2022-10-10 17:34:26 +0300
commit21c4d7c5dddf7f51a4b8c11f94b8126278ff662e (patch)
treedef195bf5f248d3950a9e6154567b4bf4c131e29 /lib
parent731ab362d5b1d95e4716a4cde53e0434922f483f (diff)
downloadu-boot-21c4d7c5dddf7f51a4b8c11f94b8126278ff662e.tar.xz
efi_loader: reformat efi_disk_add_dev()
Make it clearer why InstallMultipleProtocolInterfaces is invoked with two NULLs: * rename guid to esp_guid * put protocol GUIDs and the related interfaces on same lines * add comment Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/efi_loader/efi_disk.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c
index a2095050fd..cef4e45124 100644
--- a/lib/efi_loader/efi_disk.c
+++ b/lib/efi_loader/efi_disk.c
@@ -395,7 +395,7 @@ static efi_status_t efi_disk_add_dev(
{
struct efi_disk_obj *diskobj;
struct efi_object *handle;
- const efi_guid_t *guid = NULL;
+ const efi_guid_t *esp_guid = NULL;
efi_status_t ret;
/* Don't add empty devices */
@@ -439,7 +439,7 @@ static efi_status_t efi_disk_add_dev(
efi_free_pool(node);
diskobj->media.last_block = part_info->size - 1;
if (part_info->bootable & PART_EFI_SYSTEM_PARTITION)
- guid = &efi_system_partition_guid;
+ esp_guid = &efi_system_partition_guid;
} else {
diskobj->dp = efi_dp_from_part(desc, part);
diskobj->media.last_block = desc->lba - 1;
@@ -454,12 +454,16 @@ static efi_status_t efi_disk_add_dev(
* in this case.
*/
handle = &diskobj->header;
- ret = efi_install_multiple_protocol_interfaces(&handle,
- &efi_guid_device_path,
- diskobj->dp,
- &efi_block_io_guid,
- &diskobj->ops, guid,
- NULL, NULL);
+ ret = efi_install_multiple_protocol_interfaces(
+ &handle,
+ &efi_guid_device_path, diskobj->dp,
+ &efi_block_io_guid, &diskobj->ops,
+ /*
+ * esp_guid must be last entry as it
+ * can be NULL. Its interface is NULL.
+ */
+ esp_guid, NULL,
+ NULL);
if (ret != EFI_SUCCESS)
goto error;