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hw/xwin: Avoid a null dereference if CreateDIBSection() fails in NetWMToWinIconAlpha() 

Avoid a null dereference of DIB_pixels if CreateDIBSection() fails in
NetWMToWinIconAlpha()

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
This commit is contained in:
Jon TURNEY 2013-06-16 00:07:57 +01:00
parent 71b5f56302
commit 9fe360bf2b
1 changed files with 4 additions and 0 deletions
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4
hw/xwin/winmultiwindowicons.c
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@ -257,6 +257,10 @@ NetWMToWinIconAlpha(uint32_t * icon)
DIB_RGB_COLORS, (void **) &DIB_pixels, NULL,
0);
ReleaseDC(NULL, hdc);
if (!ii.hbmColor)
return NULL;
ii.hbmMask = CreateBitmap(width, height, 1, 1, NULL);
memcpy(DIB_pixels, pixels, height * width * 4);