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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-04-28 01:53:50 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-04-28 01:53:50 +0200
commit0ad4991cae47c0d3ae93e1531ba5572d223d700c (patch)
tree65ef2e310b84c159b56630f36e2d9c75c3c9f9e6 /drivers/acpi/acpica/nsprepkg.c
parent2467d7b7037438f2d1fed826fc5217dddf4b37fb (diff)
parent8ee88d591154ad7d9d413ba150a1ddbb8c2bf198 (diff)
Merge branch 'acpica'
* acpica: (33 commits) ACPICA: Update version to 20130328 ACPICA: Add a lock to the internal object reference count mechanism ACPICA: Fix a format string for 64-bit generation ACPICA: Remove FORCE_DELETE option for global reference count mechanism ACPICA: Improve error message for Index() operator ACPICA: FADT: Remove extraneous warning for very large GPE registers ACPICA: Fix a typo in a function header, no functional change ACPICA: Fix a typo in an error message ACPICA: Fix for some comments/headers ACPICA: _OSI Support: handle any errors from acpi_os_acquire_mutex() ACPICA: Predefine names: Add allowed argument types to master info table ACPI: Set length even for TYPE_END_TAG acpi resource ACPICA: Update version to 20130214 ACPICA: Object repair: Allow 0-length packages for variable-length packages ACPICA: Disassembler: Add warnings for unresolved control methods ACPICA: Return object repair: Add resource template repairs ACPICA: Return object repair: Add string-to-unicode conversion ACPICA: Split object conversion functions to a new file ACPICA: Add mechanism for early object repairs on a per-name basis ACPICA: Remove trailing comma in enum declarations ...
Diffstat (limited to 'drivers/acpi/acpica/nsprepkg.c')
-rw-r--r--drivers/acpi/acpica/nsprepkg.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index a40155467d2e..77cdd539de16 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -112,9 +112,15 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
elements = return_object->package.elements;
count = return_object->package.count;
- /* The package must have at least one element, else invalid */
-
+ /*
+ * Most packages must have at least one element. The only exception
+ * is the variable-length package (ACPI_PTYPE1_VAR).
+ */
if (!count) {
+ if (package->ret_info.type == ACPI_PTYPE1_VAR) {
+ return (AE_OK);
+ }
+
ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
"Return Package has no elements (empty)"));