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path: root/drivers/acpi/acpica/rscalc.c
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Diffstat (limited to 'drivers/acpi/acpica/rscalc.c')
-rw-r--r--drivers/acpi/acpica/rscalc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 685177985509..147feb6aa2a0 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -457,6 +457,15 @@ acpi_rs_get_list_length(u8 * aml_buffer,
* 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: