01/02: [NTOSKRNL] Use captured variable to check parameters in NtRead/WriteFile

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=44155053cdade19887932…

commit 44155053cdade19887932598ce6048a74f0ca71f
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Thu Oct 4 10:27:35 2018 +0200
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Thu Oct 4 10:45:10 2018 +0200

    [NTOSKRNL] Use captured variable to check parameters in NtRead/WriteFile
---
 ntoskrnl/io/iomgr/iofunc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/ntoskrnl/io/iomgr/iofunc.c b/ntoskrnl/io/iomgr/iofunc.c
index b90e73f5dc..01a956505f 100644
--- a/ntoskrnl/io/iomgr/iofunc.c
+++ b/ntoskrnl/io/iomgr/iofunc.c
@@ -2633,7 +2633,7 @@ NtReadFile(IN HANDLE FileHandle,
                 {
                     /* Fail if ByteOffset is not sector size aligned */
                     if ((DeviceObject->SectorSize != 0) &&
-                        (ByteOffset->QuadPart % DeviceObject->SectorSize != 0))
+                        (CapturedByteOffset.QuadPart % DeviceObject->SectorSize !=
0))
                     {
                         /* Release the file object and and fail */
                         ObDereferenceObject(FileObject);
@@ -3670,11 +3670,11 @@ NtWriteFile(IN HANDLE FileHandle,
                 {
                     /* Fail if ByteOffset is not sector size aligned */
                     if ((DeviceObject->SectorSize != 0) &&
-                        (ByteOffset->QuadPart % DeviceObject->SectorSize != 0))
+                        (CapturedByteOffset.QuadPart % DeviceObject->SectorSize !=
0))
                     {
                         /* Only if that's not specific values for synchronous IO */
-                        if ((ByteOffset->QuadPart != FILE_WRITE_TO_END_OF_FILE)
&&
-                            (ByteOffset->QuadPart != FILE_USE_FILE_POINTER_POSITION
||
+                        if ((CapturedByteOffset.QuadPart != FILE_WRITE_TO_END_OF_FILE)
&&
+                            (CapturedByteOffset.QuadPart !=
FILE_USE_FILE_POINTER_POSITION ||
                              !BooleanFlagOn(FileObject->Flags, FO_SYNCHRONOUS_IO)))
                         {
                             /* Release the file object and and fail */