sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix bug in unload function: Check if component name protocol exist, only uninstall it when it really exists.

Browse Source 
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Tian, Feng <feng.tian@intel.com>
Reviewed-by: Jin, Eric <eric.jin@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15092 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Fu Siyuan
2014-01-10 08:24:29 +00:00
committed by sfu5
parent 9325f68430
commit 18b24f924f
6 changed files with 443 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
View File

@ -1,7 +1,7 @@
/** @file
Miscellaneous routines for iSCSI driver.
Copyright (c) 2004 - 2013, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -852,3 +852,70 @@ IScsiOnExitBootService (
IScsiSessionAbort (&Private->Session);
}
/**
Tests whether a controller handle is being managed by IScsi driver.
This function tests whether the driver specified by DriverBindingHandle is
currently managing the controller specified by ControllerHandle. This test
is performed by evaluating if the the protocol specified by ProtocolGuid is
present on ControllerHandle and is was opened by DriverBindingHandle and Nic
Device handle with an attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.
If ProtocolGuid is NULL, then ASSERT().
@param ControllerHandle A handle for a controller to test.
@param DriverBindingHandle Specifies the driver binding handle for the
driver.
@param ProtocolGuid Specifies the protocol that the driver specified
by DriverBindingHandle opens in its Start()
function.
@retval EFI_SUCCESS ControllerHandle is managed by the driver
specified by DriverBindingHandle.
@retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver
specified by DriverBindingHandle.
**/
EFI_STATUS
EFIAPI
IScsiTestManagedDevice (
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverBindingHandle,
IN EFI_GUID *ProtocolGuid
)
{
EFI_STATUS Status;
VOID *ManagedInterface;
EFI_HANDLE NicControllerHandle;
ASSERT (ProtocolGuid != NULL);
NicControllerHandle = NetLibGetNicHandle (ControllerHandle, ProtocolGuid);
if (NicControllerHandle == NULL) {
return EFI_UNSUPPORTED;
}
Status = gBS->OpenProtocol (
ControllerHandle,
(EFI_GUID *) ProtocolGuid,
&ManagedInterface,
DriverBindingHandle,
NicControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (!EFI_ERROR (Status)) {
gBS->CloseProtocol (
ControllerHandle,
(EFI_GUID *) ProtocolGuid,
DriverBindingHandle,
NicControllerHandle
);
return EFI_UNSUPPORTED;
}
if (Status != EFI_ALREADY_STARTED) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}