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- Improve GetPciIrqRoutingTable. Patch by Sergey Chernov (serrox at ya dot ru), small modifications by me.
CORE-8440

svn path=/trunk/; revision=63985
This commit is contained in:
Thomas Faber 2014-08-30 10:59:25 +00:00
parent 038c129cf6
commit 0cca44bdb8
1 changed files with 16 additions and 6 deletions
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22
reactos/boot/freeldr/freeldr/arch/i386/hwpci.c
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@ -41,6 +41,14 @@ GetPciIrqRoutingTable(VOID)
{
TRACE("Found signature\n");
if (Table->TableSize < FIELD_OFFSET(PCI_IRQ_ROUTING_TABLE, Slot) ||
Table->TableSize % 16 != 0)
{
ERR("Invalid routing table size (%u) at %p. Continue searching...\n", Table->TableSize, Table);
Table = (PPCI_IRQ_ROUTING_TABLE)((ULONG_PTR)Table + 0x10);
continue;
}
Ptr = (PUCHAR)Table;
Sum = 0;
for (i = 0; i < Table->TableSize; i++)
@ -50,18 +58,20 @@ GetPciIrqRoutingTable(VOID)
if ((Sum & 0xFF) != 0)
{
ERR("Invalid routing table\n");
return NULL;
ERR("Invalid routing table checksum (%#lx) at %p. Continue searching...\n", Sum & 0xFF, Table);
}
else
{
TRACE("Valid checksum\n");
return Table;
}
TRACE("Valid checksum\n");
return Table;
}
Table = (PPCI_IRQ_ROUTING_TABLE)((ULONG_PTR)Table + 0x10);
}
ERR("No valid routing table found!\n");
return NULL;
}