[reactos] 02/04: [FRAMEBUF] Early return if we got 0 available mode from video driver

[Hervé Poussineau]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=9b5d029c7a45402f46f93…

commit 9b5d029c7a45402f46f93265888f137ea0669d98
Author:     Hervé Poussineau <hpoussin(a)reactos.org>
AuthorDate: Sun Jul 4 23:27:01 2021 +0200
Commit:     Hervé Poussineau <hpoussin(a)reactos.org>
CommitDate: Mon Jul 5 23:44:35 2021 +0200

    [FRAMEBUF] Early return if we got 0 available mode from video driver
    
    This prevents allocating 0 bytes of memory a few lines later.
---
 win32ss/drivers/displays/framebuf/screen.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/win32ss/drivers/displays/framebuf/screen.c
b/win32ss/drivers/displays/framebuf/screen.c
index b97a0274695..7ec7ecff138 100644
--- a/win32ss/drivers/displays/framebuf/screen.c
+++ b/win32ss/drivers/displays/framebuf/screen.c
@@ -51,6 +51,11 @@ GetAvailableModes(
       return 0;
    }
 
+   if (Modes.NumModes == 0)
+   {
+      return 0;
+   }
+
    *ModeInfoSize = Modes.ModeInformationLength;
 
    /*