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boot: Don't copy device path

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BS->LocateDevicePath only advances the passed device path pointer.
It does not actually modify it, so there is no need to make a copy.
This commit is contained in:
Jan Janssen 2022-05-29 11:03:43 +02:00
parent b05d69ed72
commit e17fd5538f
1 changed files with 1 additions and 6 deletions
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7
src/boot/efi/shim.c
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@ -102,7 +102,6 @@ static EFIAPI EFI_STATUS security2_policy_authentication (const EFI_SECURITY2_PR
static EFIAPI EFI_STATUS security_policy_authentication (const EFI_SECURITY_PROTOCOL *this, UINT32 authentication_status,
const EFI_DEVICE_PATH_PROTOCOL *device_path_const) {
EFI_STATUS status;
_cleanup_freepool_ EFI_DEVICE_PATH *dev_path = NULL;
_cleanup_freepool_ CHAR16 *dev_path_str = NULL;
EFI_HANDLE h;
_cleanup_freepool_ CHAR8 *file_buffer = NULL;
@ -113,11 +112,7 @@ static EFIAPI EFI_STATUS security_policy_authentication (const EFI_SECURITY_PROT
if (!device_path_const)
return EFI_INVALID_PARAMETER;
dev_path = DuplicateDevicePath((EFI_DEVICE_PATH*) device_path_const);
if (!dev_path)
return EFI_OUT_OF_RESOURCES;
EFI_DEVICE_PATH *dp = dev_path;
EFI_DEVICE_PATH *dp = (EFI_DEVICE_PATH *) device_path_const;
status = BS->LocateDevicePath(&FileSystemProtocol, &dp, &h);
if (EFI_ERROR(status))
return status;