ACPICA: Resource Mgr: Small fix for buffer size calculation
Fixes a one byte error in the output buffer calculation.
Feng Tang - ACPICA BZ 849:
https://www.acpica.org/bugzilla/show_bug.cgi?id=849
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 6851779..147feb6 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -457,6 +457,15 @@
* Get the number of vendor data bytes
*/
extra_struct_bytes = resource_length;
+
+ /*
+ * There is already one byte included in the minimum
+ * descriptor size. If there are extra struct bytes,
+ * subtract one from the count.
+ */
+ if (extra_struct_bytes) {
+ extra_struct_bytes--;
+ }
break;
case ACPI_RESOURCE_NAME_END_TAG: