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[WIN32K] Fix memory leak on failure in REGION_SetPolyPolygonRgn

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This commit is contained in:
Timo Kreuzer
2022-12-03 12:44:38 +02:00
parent 4f0f5f6ff8
commit a206b55838
1 changed files with 8 additions and 6 deletions
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14
win32ss/gdi/ntgdi/region.c
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@@ -3295,6 +3295,7 @@ REGION_SetPolyPolygonRgn(
POINTBLOCK *tmpPtBlock;
UINT numFullPtBlocks = 0;
UINT poly, total;
BOOL bResult = FALSE;
/* Check if iMode is valid */
if ((iMode != ALTERNATE) && (iMode != WINDING))
@@ -3370,8 +3371,7 @@ REGION_SetPolyPolygonRgn(
if (tmpPtBlock == NULL)
{
DPRINT1("Can't alloc tmpPtBlock\n");
ExFreePoolWithTag(pETEs, TAG_REGION);
return FALSE;
goto Cleanup;
}
curPtBlock->next = tmpPtBlock;
@@ -3426,8 +3426,7 @@ REGION_SetPolyPolygonRgn(
if (tmpPtBlock == NULL)
{
DPRINT1("Can't alloc tPB\n");
ExFreePoolWithTag(pETEs, TAG_REGION);
return FALSE;
goto Cleanup;
}
curPtBlock->next = tmpPtBlock;
curPtBlock = tmpPtBlock;
@@ -3452,8 +3451,11 @@ REGION_SetPolyPolygonRgn(
}
}
REGION_FreeStorage(SLLBlock.next);
REGION_PtsToRegion(numFullPtBlocks, iPts, &FirstPtBlock, prgn);
bResult = TRUE;
Cleanup:
REGION_FreeStorage(SLLBlock.next);
for (curPtBlock = FirstPtBlock.next; numFullPtBlocks-- > 0;)
{
@@ -3463,7 +3465,7 @@ REGION_SetPolyPolygonRgn(
}
ExFreePoolWithTag(pETEs, TAG_REGION);
return TRUE;
return bResult;
}
HRGN