scroll

commit 7e05ee78525d93fb4b3aed2dd5f7ec53f19b8a57
parent a7570270a8bce8657013bb0fbb97455fc0627ffa
Author: Jan Klemkow <j.klemkow@wemelug.de>
Date:   Tue, 11 Feb 2020 21:13:12 +0100

prevent bottom from getting NULL again in scrolldown

Diffstat:
M
scroll.c
 | 
5
++++-

1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/scroll.c b/scroll.c
@@ -208,8 +208,11 @@ scrolldown(void)
 	write(STDOUT_FILENO, "\r\n", 2);
 	/* print one page */
 	for (; rows >= 0;) {
-		if ((bottom = TAILQ_PREV(bottom, tailhead, entries)) == NULL)
+		if (TAILQ_PREV(bottom, tailhead, entries) != NULL)
+			bottom = TAILQ_PREV(bottom, tailhead, entries);
+		else
 			break;
+
 		if (--rows > 0)
 			write(STDOUT_FILENO, bottom->buf, bottom->size);
 		else /* last line w/o "/r/n" */