From: Karel Zak <kzak@redhat.com>
Date: Thu, 2 May 2024 08:54:04 +0000 (+0200)
Subject: agetty: make reload code more robust
X-Git-Tag: v2.42-start~356
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b5e2de00cc6b79a2522342ff99cce6bb87743094;p=thirdparty%2Futil-linux.git

agetty: make reload code more robust

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/term-utils/agetty.c b/term-utils/agetty.c
index 5963e8317..94b775624 100644
--- a/term-utils/agetty.c
+++ b/term-utils/agetty.c
@@ -1877,6 +1877,7 @@ static int issue_is_changed(struct issue *ie)
 		free(ie->mem_old);
 		ie->mem_old = ie->mem;
 		ie->mem = NULL;
+		ie->mem_sz = 0;
 		return 0;
 	}
 
@@ -1903,7 +1904,7 @@ static void print_issue_file(struct issue *ie,
 		}
 	}
 
-	if (ie->mem_sz)
+	if (ie->mem_sz && ie->mem)
 		write_all(STDOUT_FILENO, ie->mem, ie->mem_sz);
 
 	if (ie->do_tcrestore) {