fix NULL ptr deref in ss_set_window()

diff --git a/sys/scsi/ss.c b/sys/scsi/ss.c
index 554f4b6..9fcf609 100644 (file)
--- a/sys/scsi/ss.c
+++ b/sys/scsi/ss.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ss.c,v 1.30 1997/03/13 12:22:37 kstailey Exp $        */
+/*     $OpenBSD: ss.c,v 1.31 1997/04/05 22:59:13 kstailey Exp $        */
 /*     $NetBSD: ss.c,v 1.10 1996/05/05 19:52:55 christos Exp $ */
 
 /*
@@ -111,6 +111,8 @@ struct ss_quirk_inquiry_pattern {
        struct quirkdata quirkdata;
 };
 
+struct  quirkdata ss_gen_quirks;
+
 void    ssstrategy __P((struct buf *));
 void    ssstart __P((void *));
 void   ssminphys __P((struct buf *));
@@ -349,6 +351,11 @@ ss_identify_scanner(ss, inqbuf)
                printf("\n%s: %s\n", ss->sc_dev.dv_xname, ss->quirkdata->name);
        } else {
                printf("\n%s: generic scanner\n", ss->sc_dev.dv_xname);
+               bzero(&ss_gen_quirks, sizeof(ss_gen_quirks));
+#if 0
+               ss_gen_quirks.name = "generic";
+#endif
+               ss->quirkdata = &ss_gen_quirks;
                ss->sio.scan_scanner_type = GENERIC_SCSI2;
        }
 }
@@ -954,3 +961,36 @@ get_buffer_status(ss, bp)
        }
        bp->b_bcount = MIN(_3btol(buf_sz_retn.tgt_send_buf_len), bp->b_bcount);
 }
+
+#ifdef NOTYET
+int
+umax_compute_sizes(ss)
+       struct ss_softc *ss;
+{
+       ss->sio.scan_lines = ;
+       ss->sio.scan_window_size = ;
+}
+
+int
+calc_umax_row_len(dpi, ww)
+       int dpi;
+       int ww;
+{
+       int st[301];
+       int i;
+       int rowB = 0;
+
+       for (i = 1; i <= 300; i++)
+               st[i] = 1;
+
+       for (i = 1; i <= 300 - dpi; i++)
+               st[i * 300 / (300 - dpi)] = 0;
+
+       for (i = 1; i <= (ww % 1200) / 4; i++) {
+               if (st[i])
+                       rowB++;
+       }
+
+       return ((ww / 1200) * dpi + rowB);
+}
+#endif