33 lines
1011 B
Diff
33 lines
1011 B
Diff
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Index: src/core/pci.cc
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===================================================================
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--- src/core/pci.cc (revisjon 1933)
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+++ src/core/pci.cc (revisjon 1934)
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@@ -70,6 +70,7 @@
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#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
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#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
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#define PCI_CAP_SIZEOF 4
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+#define PCI_FIND_CAP_TTL 48
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#define PCI_SID_ESR 2 /* Expansion Slot Register */
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#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
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@@ -668,8 +669,9 @@
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{
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unsigned int where = get_conf_byte(d, PCI_CAPABILITY_LIST) & ~3;
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string buffer;
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+ unsigned int ttl = PCI_FIND_CAP_TTL;
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- while(where)
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+ while(where && ttl--)
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{
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unsigned int id, next, cap;
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@@ -677,7 +679,7 @@
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next = get_conf_byte(d, where + PCI_CAP_LIST_NEXT) & ~3;
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cap = get_conf_word(d, where + PCI_CAP_FLAGS);
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- if(!id)
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+ if(!id || id == 0xff)
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return false;
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switch(id)
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