tailk: fix error detected by testsuite

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-03-12 22:16:25 +01:00 · 2010-03-12 22:16:25 +01:00 · 6eaeb7737d
parent f9782ffc45
commit 6eaeb7737d
1 changed files with 2 additions and 1 deletions
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@ -241,7 +241,8 @@ int tail_main(int argc, char **argv)
 						} while (nwrite);
 					}
 				}
-				xwrite(STDOUT_FILENO, buf + nread - nwrite, nwrite);
+				if (nwrite > 0)
+					xwrite(STDOUT_FILENO, buf + nread - nwrite, nwrite);
 			} else if (count) {
 				if (COUNT_BYTES) {
 					taillen += nread;