[reactos] 01/01: [WIN32K:ENG] EngAlphaBlend(): Release EnterLeaveSource on error (#4560)

[Serge Gautherie]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b671b1cf8f7c3dce718d8…

commit b671b1cf8f7c3dce718d81f9067e07c66f878498
Author:     Serge Gautherie <32623169+SergeGautherie(a)users.noreply.github.com>
AuthorDate: Sat Jul 2 11:30:03 2022 +0200
Commit:     GitHub <noreply(a)github.com>
CommitDate: Sat Jul 2 12:30:03 2022 +0300

    [WIN32K:ENG] EngAlphaBlend(): Release EnterLeaveSource on error (#4560)
    
    Part of CORE-11156
    
    Co-authored-by: Carlo Bramini <carlo.bramix(a)libero.it>
---
 win32ss/gdi/eng/alphablend.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/win32ss/gdi/eng/alphablend.c b/win32ss/gdi/eng/alphablend.c
index 869698989ba..012d8c984be 100644
--- a/win32ss/gdi/eng/alphablend.c
+++ b/win32ss/gdi/eng/alphablend.c
@@ -111,6 +111,7 @@ EngAlphaBlend(
 
     if (!IntEngEnter(&EnterLeaveDest, psoDest, &OutputRect, FALSE,
&Translate, &OutputObj))
     {
+        IntEngLeave(&EnterLeaveSource);
         return FALSE;
     }
     OutputRect.left += Translate.x;