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| author | Bob Moore <robert.moore@intel.com> | 2008-04-10 17:06:38 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-04-22 20:29:22 +0200 |
| commit | 91d02132fea3a60d3db7bd72933e38e36cd9e4c7 (patch) | |
| tree | 0acd2c723040ede352258f016952371afaee1152 /drivers/acpi/dispatcher | |
| parent | ACPICA: Increase maximum buffer size dumped to screen in buffer object dump (diff) | |
| download | linux-91d02132fea3a60d3db7bd72933e38e36cd9e4c7.tar.xz linux-91d02132fea3a60d3db7bd72933e38e36cd9e4c7.zip | |
ACPICA: Fix for package reference counts
Prevents infinite loop of 'Large Reference Count' messages in
aslts-bdemo-b286 test.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/dispatcher')
| -rw-r--r-- | drivers/acpi/dispatcher/dsobject.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c index 954ac8ce958a..fe28b9aeb65c 100644 --- a/drivers/acpi/dispatcher/dsobject.c +++ b/drivers/acpi/dispatcher/dsobject.c @@ -370,6 +370,8 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, union acpi_operand_object *obj_desc = NULL; acpi_status status = AE_OK; acpi_native_uint i; + u16 index; + u16 reference_count; ACPI_FUNCTION_TRACE(ds_build_internal_package_obj); @@ -447,6 +449,26 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, package. elements[i]); } + + if (*obj_desc_ptr) { + + /* Existing package, get existing reference count */ + + reference_count = + (*obj_desc_ptr)->common.reference_count; + if (reference_count > 1) { + + /* Make new element ref count match original ref count */ + + for (index = 0; index < (reference_count - 1); + index++) { + acpi_ut_add_reference((obj_desc-> + package. + elements[i])); + } + } + } + arg = arg->common.next; } |