NetworkPkg: reset DHCP child when leaving PXE LoadFile.

The DHCP4 can have only one configured child instance so we need to reset
the DHCP4 child when leaving PXE driver's LoadFile() function, otherwise the
other programs which also need to use DHCP4 (like HTTP boot) will be impacted.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Sriram Subramanian <sriram-s@hpe.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18616 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Fu Siyuan 2015-10-16 07:18:51 +00:00 committed by sfu5
parent 30268f29bd
commit c476450456
1 changed files with 10 additions and 0 deletions

View File

@ -2392,6 +2392,16 @@ EfiPxeLoadFile (
// 3. unsupported. // 3. unsupported.
// //
PxeBc->Stop (PxeBc); PxeBc->Stop (PxeBc);
} else {
//
// The DHCP4 can have only one configured child instance so we need to stop
// reset the DHCP4 child before we return. Otherwise these programs which
// also need to use DHCP4 will be impacted.
//
if (!PxeBc->Mode->UsingIpv6) {
Private->Dhcp4->Stop (Private->Dhcp4);
Private->Dhcp4->Configure (Private->Dhcp4, NULL);
}
} }
return Status; return Status;