uslip/uslip.c: Make `make_pkqnode' be const-correct.

diff --git a/uslip/uslip.c b/uslip/uslip.c
index 6a8a4c01f365d9f48af5731416b80cd77cd0b542..7752458c286031d3156f1c6f359dc1d32f015b95 100644 (file)
--- a/uslip/uslip.c
+++ b/uslip/uslip.c
@@ -135,7 +135,7 @@ static void socketaddr(struct sockaddr_un *sun, size_t *sz)
 
 static void initqueue(pkq *q) { q->head = 0; q->tail = &q->head; }
 
-static pkq_node *make_pkqnode(void *p, size_t n)
+static pkq_node *make_pkqnode(const void *p, size_t n)
 {
   pkq_node *pn;