[RTEMS Project] #4257: main_edit.c: Unchecked return value error spotted by Coverity

[RTEMS trac]

#4257: main_edit.c: Unchecked return value error spotted by Coverity
------------------------+--------------------
  Reporter:  Ryan Long  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  normal     |  Milestone:  6.1
 Component:  lib        |    Version:  6
  Severity:  normal     |   Keywords:
Blocked By:             |   Blocking:
------------------------+--------------------
 CID 1255318: Unchecked return value in display_line().

 {{{
 1082static void display_line(struct editor *ed, int pos, int fullline) {
 1083  int hilite = 0;
 1084  int col = 0;
 1085  int margin = ed->margin;
 1086  int maxcol = ed->env->cols + margin;
 1087  unsigned char *bufptr = ed->env->linebuf;
 1088  unsigned char *p = text_ptr(ed, pos);
 1089  int selstart, selend, ch;
 1090  char *s;
 1091
     CID 1255318 (#1 of 1): Unchecked return value (CHECKED_RETURN)1.
 check_return: Calling get_selection without checking return value (as is
 done elsewhere 5 out of 6 times).
 1092  get_selection(ed, &selstart, &selend);
 }}}

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Ticket URL: <http://devel.rtems.org/ticket/4257>
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