Fix memory leak when resizing line buffer down.

Could happen when terminal window shrinks vertically.

1 files changed, 3 insertions, 0 deletions

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)