===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/less/os.c,v
retrieving revision 1.16
retrieving revision 1.17
diff -c -r1.16 -r1.17
*** src/usr.bin/less/os.c	2016/03/16 15:36:26	1.16
--- src/usr.bin/less/os.c	2019/06/28 13:35:01	1.17
***************
*** 40,46 ****
  start:
  	flush(0);
  	n = read(fd, buf, len);
! 	if (n < 0) {
  		/*
  		 * Certain values of errno indicate we should just retry the
  		 * read.
--- 40,46 ----
  start:
  	flush(0);
  	n = read(fd, buf, len);
! 	if (n == -1) {
  		/*
  		 * Certain values of errno indicate we should just retry the
  		 * read.