[reactos] 02/02: [KS] KsQueryInformationFile(): Fallback to IRP if FastIO failed

[Serge Gautherie]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b326312d520ca913c59ed…

commit b326312d520ca913c59ed502ba25d4625a792f9d
Author:     Serge Gautherie <reactos-git_serge_171003(a)gautherie.fr>
AuthorDate: Tue Jan 7 16:49:26 2020 +0100
Commit:     Victor Perevertkin <victor(a)perevertkin.ru>
CommitDate: Mon Feb 17 19:08:57 2020 +0300

    [KS] KsQueryInformationFile(): Fallback to IRP if FastIO failed
    
    Or, if it succeeded, return the actual NTSTATUS, not an unrelated BOOLEAN.
    
    Addendum to commit 4725a4fd9cb76e05ab5bb225e1f30bd94743e8d9 (r42117).
    
    CORE-16618
---
 drivers/ksfilter/ks/irp.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/drivers/ksfilter/ks/irp.c b/drivers/ksfilter/ks/irp.c
index 9205450eea8..ab5d1b21523 100644
--- a/drivers/ksfilter/ks/irp.c
+++ b/drivers/ksfilter/ks/irp.c
@@ -367,17 +367,31 @@ KsQueryInformationFile(
         if (FileInformationClass == FileBasicInformation)
         {
             /* use FastIoQueryBasicInfo routine */
-            if (FastIoDispatch->FastIoQueryBasicInfo)
+            if (FastIoDispatch->FastIoQueryBasicInfo != NULL &&
+                FastIoDispatch->FastIoQueryBasicInfo(
+                  FileObject,
+                  TRUE,
+                  (PFILE_BASIC_INFORMATION)FileInformation,
+                  &IoStatusBlock,
+                  DeviceObject))
             {
-                return FastIoDispatch->FastIoQueryBasicInfo(FileObject, TRUE,
(PFILE_BASIC_INFORMATION)FileInformation, &IoStatusBlock, DeviceObject);
+                /* request was handled */
+                return IoStatusBlock.Status;
             }
         }
         else if (FileInformationClass == FileStandardInformation)
         {
             /* use FastIoQueryStandardInfo routine */
-            if (FastIoDispatch->FastIoQueryStandardInfo)
+            if (FastIoDispatch->FastIoQueryStandardInfo != NULL &&
+                FastIoDispatch->FastIoQueryStandardInfo(
+                  FileObject,
+                  TRUE,
+                  (PFILE_STANDARD_INFORMATION)FileInformation,
+                  &IoStatusBlock,
+                  DeviceObject))
             {
-                return FastIoDispatch->FastIoQueryStandardInfo(FileObject, TRUE,
(PFILE_STANDARD_INFORMATION)FileInformation, &IoStatusBlock, DeviceObject);
+                /* request was handled */
+                return IoStatusBlock.Status;
             }
         }
     }