diff options
| -rw-r--r-- | src/include/ipxe/efi/efi_driver.h | 2 | ||||
| -rw-r--r-- | src/interface/efi/efi_driver.c | 10 |
2 files changed, 10 insertions, 2 deletions
diff --git a/src/include/ipxe/efi/efi_driver.h b/src/include/ipxe/efi/efi_driver.h index 74ece90d..411e9364 100644 --- a/src/include/ipxe/efi/efi_driver.h +++ b/src/include/ipxe/efi/efi_driver.h @@ -19,6 +19,8 @@ struct efi_device { struct device dev; /** EFI device handle */ EFI_HANDLE device; + /** EFI child device handle (if present) */ + EFI_HANDLE child; /** EFI device path copy */ EFI_DEVICE_PATH_PROTOCOL *path; /** Driver for this device */ diff --git a/src/interface/efi/efi_driver.c b/src/interface/efi/efi_driver.c index 8e537d53..8f8c9f3d 100644 --- a/src/interface/efi/efi_driver.c +++ b/src/interface/efi/efi_driver.c @@ -64,16 +64,22 @@ static int efi_driver_disconnecting; /** * Find EFI device * - * @v device EFI device handle + * @v device EFI device handle (or child handle) * @ret efidev EFI device, or NULL if not found */ static struct efi_device * efidev_find ( EFI_HANDLE device ) { struct efi_device *efidev; + /* Avoid false positive matches against NULL children */ + if ( ! device ) + return NULL; + /* Look for an existing EFI device */ list_for_each_entry ( efidev, &efi_devices, dev.siblings ) { - if ( efidev->device == device ) + if ( ( device == efidev->device ) || + ( device == efidev->child ) ) { return efidev; + } } return NULL; |