om: Fix potential memory leak in init_om.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan-de-oliveira@nokia.com> Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> Backported-to-NX-by: Ulrich Sibiller <uli42@gmx.de>

om: Fix potential memory leak in init_om.
748cf894 · Ander Conselvan de Oliveira · Ulrich Sibiller · 6fe8d44c · 748cf894
Commit 748cf894 authored Mar 25, 2011 by Ander Conselvan de Oliveira Committed by Ulrich Sibiller Oct 19, 2016
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omGeneric.c nx-X11/lib/X11/omGeneric.c +8 -6

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--- a/nx-X11/lib/X11/omGeneric.c
+++ b/nx-X11/lib/X11/omGeneric.c
@@ -2094,23 +2094,25 @@ init_om(
    if (required_list == NULL)
 	return False;

-    bufptr = (char *) Xmalloc(length);
-    if (bufptr == NULL) {
-	Xfree(required_list);
-	return False;
-    }
-
    om->core.required_charset.charset_list = required_list;
    om->core.required_charset.charset_count = gen->data_num;

    count = gen->data_num;
    data = gen->data;

+    if (count > 0) {
+	bufptr = (char *) Xmalloc(length);
+	if (bufptr == NULL) {
+	    Xfree(required_list);
+	    return False;
+	}
+
 	for ( ; count-- > 0; data++) {
 	    strcpy(bufptr, data->font_data->name);
 	    *required_list++ = bufptr;
 	    bufptr += strlen(bufptr) + 1;
 	}
+    }

    /* orientation list */
    orientation = (XOrientation *) Xmalloc(sizeof(XOrientation) * 2);