mciwave: Correctly handle error return status from mmioRead.

Signed-off-by: Eric Pouech <eric.pouech@gmail.com> Signed-off-by: Andrew Eikum <aeikum@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

mciwave: Correctly handle error return status from mmioRead.
90ecf27d · Eric Pouech · Alexandre Julliard · 684944f0 · 90ecf27d
Commit 90ecf27d authored Mar 30, 2022 by Eric Pouech Committed by Alexandre Julliard Apr 01, 2022
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mciwave.c dlls/mciwave/mciwave.c +1 -1

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--- a/dlls/mciwave/mciwave.c
+++ b/dlls/mciwave/mciwave.c
@@ -291,7 +291,7 @@ static	DWORD WAVE_mciReadFmt(WINE_MCIWAVE* wmw, const MMCKINFO* pckMainRIFF)
    if (!pwfx) return MCIERR_OUT_OF_MEMORY;

    r = mmioRead(wmw->hFile, (HPSTR)pwfx, mmckInfo.cksize);
-    if (r < sizeof(PCMWAVEFORMAT)) {
+    if (r < 0 || r < sizeof(PCMWAVEFORMAT)) {
 	HeapFree(GetProcessHeap(), 0, pwfx);
 	return MCIERR_INVALID_FILE;
    }