Update comment: no functional change.

Adds a comment to clarify reason for using AcpiOsFree directly
instead of ACPI_FREE.

1 files changed, 6 insertions, 2 deletions

diff --git a/source/components/namespace/nsxfeval.c b/source/components/namespace/nsxfeval.c
index 9d2fac1c3..d8b34807c 100644
--- a/source/components/namespace/nsxfeval.c
+++ b/source/components/namespace/nsxfeval.c
@@ -221,8 +221,12 @@ AcpiEvaluateObjectTyped (
 
     if (MustFree)
     {
-        /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
-
+        /*
+         * Caller used ACPI_ALLOCATE_BUFFER, free the return buffer.
+         * Note: We use AcpiOsFree here because AcpiOsAllocate was used
+         * to allocate the buffer. This purposefully bypasses the internal
+         * allocation tracking mechanism (if it is enabled).
+         */
         AcpiOsFree (ReturnBuffer->Pointer);
         ReturnBuffer->Pointer = NULL;
     }