From: Cameron Gutman <aicommander@gmail.com>
Date: Thu, 25 Mar 2010 00:35:36 +0000 (+0000)
Subject: [ACPI]
X-Git-Tag: backups/header-work@57446~86^2~19
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=e10113d22d8df87f26635d1a0e7f07c840839c23

[ACPI]
- Don't attempt to parse output arguments if none were returned

svn path=/trunk/; revision=46417
---

diff --git a/reactos/drivers/bus/acpi/eval.c b/reactos/drivers/bus/acpi/eval.c
index 5433f96a51e..68af8573f42 100644
--- a/reactos/drivers/bus/acpi/eval.c
+++ b/reactos/drivers/bus/acpi/eval.c
@@ -93,6 +93,10 @@ Bus_PDO_EvalMethod(PPDO_DEVICE_DATA DeviceData,
       ACPI_OBJECT *Obj = RetBuff.Pointer;
       ULONG ExtraParamLength;
 
+      /* If we didn't get anything back then we're done */
+      if (!RetBuff.Pointer || RetBuff.Length == 0)
+          return STATUS_SUCCESS;
+
       switch (Obj->Type)
       {
           case ACPI_TYPE_INTEGER: