libchip/serial/mc68681.c: Add error check

This was spotted by Coverity Scan.
2017-03-13 10:41:53 -05:00
parent eb733202ad
commit 17d1aa7cc0
1 changed files with 2 additions and 0 deletions
--- a/c/src/libchip/serial/mc68681.c
+++ b/c/src/libchip/serial/mc68681.c
@@ -586,6 +586,8 @@ MC68681_STATIC int mc68681_baud_rate(
    baud_requested = B9600;              /* default to 9600 baud */

  baud_requested = rtems_termios_baud_to_index( baud_requested );
+  if (baud_requested == -1)
+    return -1;

  baud_tbl = (mc68681_baud_table_t *)
     ((uintptr_t)Console_Port_Tbl[minor]->ulClock);