X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/d2371c812a1c62b6a258c0717f1fff263cca8ca1..7af9fa7f957710190d184d85e43bf917f71f84a9:/tree234.c

diff --git a/tree234.c b/tree234.c
index 1f026708..9d1d7b04 100644
--- a/tree234.c
+++ b/tree234.c
@@ -90,6 +90,8 @@ void freetree234(tree234 *t) {
 static int countnode234(node234 *n) {
     int count = 0;
     int i;
+    if (!n)
+	return 0;
     for (i = 0; i < 4; i++)
 	count += n->counts[i];
     for (i = 0; i < 3; i++)
@@ -570,7 +572,6 @@ static void *delpos234_internal(tree234 *t, int index) {
     LOG(("deleting item %d from tree %p\n", index, t));
     while (1) {
 	while (n) {
-	    int c;
 	    int ki;
 	    node234 *sub;