diff options
| author | Jordan Hargrave <jordan@cvs.openbsd.org> | 2010-06-19 19:43:07 +0000 |
|---|---|---|
| committer | Jordan Hargrave <jordan@cvs.openbsd.org> | 2010-06-19 19:43:07 +0000 |
| commit | c4376d1f14f36850dd0d5ea0a54b77c39ba03770 (patch) | |
| tree | 8402e6ac4d6c28ec1822d99cdaf3a7db58375cb3 /sys/dev | |
| parent | 6944f989e28ee5100d5f05375f348a5d662eba43 (diff) | |
Fix reference counting panic for CondRef
Various HP laptops now boot correctly, fixes PR 6276
ok marco@
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/acpi/dsdt.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sys/dev/acpi/dsdt.c b/sys/dev/acpi/dsdt.c index cf393695ccf..8a23f4de209 100644 --- a/sys/dev/acpi/dsdt.c +++ b/sys/dev/acpi/dsdt.c @@ -1,4 +1,4 @@ -/* $OpenBSD: dsdt.c,v 1.157 2009/12/05 02:38:11 jordan Exp $ */ +/* $OpenBSD: dsdt.c,v 1.158 2010/06/19 19:43:06 jordan Exp $ */ /* * Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org> * @@ -699,6 +699,10 @@ aml_delchildren(struct aml_node *node) aml_delchildren(onode); + /* Don't delete values that have references */ + if (onode->value && onode->value->refcnt > 1) + onode->value->node = NULL; + /* Decrease reference count */ aml_xdelref(&onode->value, ""); @@ -976,6 +980,7 @@ aml_copyvalue(struct aml_value *lhs, struct aml_value *rhs) break; case AML_OBJTYPE_OBJREF: lhs->v_objref = rhs->v_objref; + aml_xaddref(lhs->v_objref.ref, ""); break; default: printf("copyvalue: %x", rhs->type); @@ -3626,12 +3631,12 @@ aml_xparse(struct aml_scope *scope, int ret_type, const char *stype) /* CondRef: rr => I */ ival = 0; if (opargs[0]->node != NULL) { - aml_freevalue(opargs[1]); - /* Create Object Reference */ - _aml_setvalue(opargs[1], AML_OBJTYPE_OBJREF, opcode, opargs[0]); - aml_xaddref(opargs[1], "CondRef"); - + opargs[2] = aml_allocvalue(AML_OBJTYPE_OBJREF, opcode, + opargs[0]); + aml_xaddref(opargs[0], "CondRef"); + aml_xstore(scope, opargs[1], 0, opargs[2]); + /* Mark that we found it */ ival = -1; } |