diff options
| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2016-11-14 13:25:54 +0800 |
|---|---|---|
| committer | Ruiyu Ni <ruiyu.ni@intel.com> | 2016-11-18 10:38:39 +0800 |
| commit | 5ce6fb99d481212b6b39e934efd40217530b88b1 (patch) | |
| tree | aa89482a670094955ba54b709ad005590f21fe91 /PcAtChipsetPkg | |
| parent | ec16deeac90e4b8014394be58a229f6aa8c493af (diff) | |
| download | edk2-platforms-5ce6fb99d481212b6b39e934efd40217530b88b1.tar.xz | |
PcAtChipsetPkg/PcRtc: Handle NULL table entry in RSDT/XSDT
The ACPI code may reserve the first entry for a certain table
(might be FACS) to help with OS compatible issues.
We need to skip the NULL table entry in RSDT/XSDT.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Diffstat (limited to 'PcAtChipsetPkg')
| -rw-r--r-- | PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c index 2bb41e7e81..35e34b74b3 100644 --- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c +++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c @@ -1230,6 +1230,11 @@ ScanTableInSDT ( //
Table = 0;
CopyMem (&Table, (VOID *) (EntryBase + Index * TablePointerSize), TablePointerSize);
+
+ if (Table == NULL) {
+ continue;
+ }
+
if (Table->Signature == Signature) {
return Table;
}
|