lib/buffer: make it robust for static analyzers [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>
2020-10-01 13:23:34 +02:00 · 2020-10-01 13:23:34 +02:00 · f831651e3a
parent 865f5f469c
commit f831651e3a
1 changed files with 3 additions and 0 deletions
--- a/lib/buffer.c
+++ b/lib/buffer.c
@ -81,6 +81,9 @@ int ul_buffer_append_data(struct ul_buffer *buf, const char *data, size_t sz)
 		if (rc)
 			return rc;
 	}
+	if (!buf->end)
+		return -EINVAL;	/* make static analyzers happy */
+
 	memcpy(buf->end, data, sz);
 	buf->end += sz;
 	*buf->end = '\0';	/* make sure it's terminated */