diff options
| -rw-r--r-- | OvmfPkg/QemuVideoDxe/Driver.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/OvmfPkg/QemuVideoDxe/Driver.c b/OvmfPkg/QemuVideoDxe/Driver.c index e71af6e850..c44b8b2603 100644 --- a/OvmfPkg/QemuVideoDxe/Driver.c +++ b/OvmfPkg/QemuVideoDxe/Driver.c @@ -170,6 +170,7 @@ QemuVideoControllerDriverStart ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
+ EFI_TPL OldTpl;
EFI_STATUS Status;
QEMU_VIDEO_PRIVATE_DATA *Private;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
@@ -178,12 +179,15 @@ QemuVideoControllerDriverStart ( QEMU_VIDEO_CARD *Card;
EFI_PCI_IO_PROTOCOL *ChildPciIo;
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
//
// Allocate Private context data for GOP inteface.
//
Private = AllocateZeroPool (sizeof (QEMU_VIDEO_PRIVATE_DATA));
if (Private == NULL) {
- return EFI_OUT_OF_RESOURCES;
+ Status = EFI_OUT_OF_RESOURCES;
+ goto RestoreTpl;
}
//
@@ -394,6 +398,7 @@ QemuVideoControllerDriverStart ( goto UninstallGop;
}
+ gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
UninstallGop:
@@ -424,6 +429,9 @@ ClosePciIo: FreePrivate:
FreePool (Private);
+RestoreTpl:
+ gBS->RestoreTPL (OldTpl);
+
return Status;
}
|