#67749

r=pedemont, sr=blizzard, a=brendan@mozilla.org
OS/2 only - don't malloc(0) - causes memory to be flushed

gfx/src/os2/nsFontMetricsOS2.cpp

@@ -537,6 +537,9 @@ static FONTMETRICS* getMetrics( long &lFonts, PCSZ facename, HPS hps)
    lFonts = GFX (::GpiQueryFonts (hps, QF_PUBLIC | QF_PRIVATE,
                                   facename, &lWant, 0, 0),
                  GPI_ALTERROR);
+   if (!lFonts) {
+      return NULL;
+   }
    FONTMETRICS* pMetrics = (FONTMETRICS*)nsMemory::Alloc(lFonts * sizeof(FONTMETRICS));
 
    GFX (::GpiQueryFonts (hps, QF_PUBLIC | QF_PRIVATE, facename,