[pschweitzer] 70725: [EXT2] Add the ReactOS famous... hack? fix? whatever? already present in FastFAT, NTFS...: When accessing a floppy disk, our floppy storage stack can return that the disk type ...

Author: pschweitzer
Date: Sat Feb 13 09:16:45 2016
New Revision: 70725

URL: http://svn.reactos.org/svn/reactos?rev=70725&view=rev
Log:
[EXT2]
Add the ReactOS famous... hack? fix? whatever? already present in FastFAT, NTFS...:
When accessing a floppy disk, our floppy storage stack can return that the disk type is
unknown (some would say it's legit - see comments in FastFAT) and will also return a
disk sector size of 0.
Then, when trying to read the floppy disk with said size, everything goes wrong (null
length read is never a good thing). So, as in any other FSD in ReactOS, for disk sector
size to 512 bytes in this really specific case.

This fixes BSOD when having a floppy drive in ReactOS (whatever its filesystem).

CORE-10464 #resolve #comment Fixed with r70725

Modified:
    trunk/reactos/drivers/filesystems/ext2/src/fsctl.c

Modified: trunk/reactos/drivers/filesystems/ext2/src/fsctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ext2/s…
==============================================================================
--- trunk/reactos/drivers/filesystems/ext2/src/fsctl.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/ext2/src/fsctl.c	[iso-8859-1] Sat Feb 13 09:16:45
2016
@@ -1496,6 +1496,13 @@
             _SEH2_LEAVE;
         }
 
+#ifdef __REACTOS__
+        if (DiskGeometry.MediaType == Unknown)
+        {
+            DiskGeometry.BytesPerSector = 512;
+        }
+#endif
+
         Status = IoCreateDevice(
                      MainDeviceObject->DriverObject,
                      sizeof(EXT2_VCB),