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| author | likun su <sulikun@loongson.cn> | 2023-08-03 19:08:27 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-08-04 01:27:33 +0000 |
| commit | 01ad4134c3e6339ac53c85fccf62ed10d5b6d662 (patch) | |
| tree | 811ebc010a0226a1ae3d1dde6e5307595c813954 /MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | |
| parent | ef051451367fa5455d75b38c407ca352a43b4849 (diff) | |
| download | edk2-01ad4134c3e6339ac53c85fccf62ed10d5b6d662.tar.gz edk2-01ad4134c3e6339ac53c85fccf62ed10d5b6d662.tar.bz2 edk2-01ad4134c3e6339ac53c85fccf62ed10d5b6d662.zip | |
MdeModulePkg: Solve boot hang Xhci driver when use USB DVD with empty disk
Signed-off-by: likun su <sulikun@loongson.cn>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: lichao <lichao@loongson.cn>
Acked-by: Hao A Wu <hao.a.wu@intel.com>
Diffstat (limited to 'MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c index 298fb88b81..53421e64a8 100644 --- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c +++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c @@ -171,7 +171,6 @@ XhcCreateUrb ( Urb->Context = Context;
Status = XhcCreateTransferTrb (Xhc, Urb);
- ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "XhcCreateUrb: XhcCreateTransferTrb Failed, Status = %r\n", Status));
FreePool (Urb);
@@ -247,7 +246,11 @@ XhcCreateTransferTrb ( Dci = XhcEndpointToDci (Urb->Ep.EpAddr, (UINT8)(Urb->Ep.Direction));
ASSERT (Dci < 32);
- EPRing = (TRANSFER_RING *)(UINTN)Xhc->UsbDevContext[SlotId].EndpointTransferRing[Dci-1];
+ EPRing = (TRANSFER_RING *)(UINTN)Xhc->UsbDevContext[SlotId].EndpointTransferRing[Dci-1];
+ if (EPRing == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
Urb->Ring = EPRing;
OutputContext = Xhc->UsbDevContext[SlotId].OutputContext;
if (Xhc->HcCParams.Data.Csz == 0) {
|