From 0a0b9e9122b5d5702968e224d0f3d830fb3c914d Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Sun, 1 May 2022 01:00:38 -0700
Subject: Fix memory leak when resizing line buffer down.

Could happen when terminal window shrinks vertically.
---
 pw.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pw.c b/pw.c
index 25f6354..baa62c5 100644
--- a/pw.c
+++ b/pw.c
@@ -560,6 +560,9 @@ static void sigwinch(int sig)
 
 static char **resizebuf(char **buf, size_t nlfrom, size_t nlto)
 {
+  if (nlfrom > nlto)
+    for (size_t i = nlto; i < nlfrom; i++)
+      dsdrop(buf[i]);
   if ((buf = realloc(buf, sizeof *buf * nlto)) == 0)
     panic("out of memory");
   if (nlfrom < nlto)
-- 
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