From 3e0668d63ab553f1edb74404dad210bc660cbfa4 Mon Sep 17 00:00:00 2001
From: Christian Spielberger <c.spielberger@commend.com>
Date: Wed, 4 Oct 2023 07:11:28 +0200
Subject: [PATCH] jbuf: better err handling for jbuf_resize()

---
 src/jbuf.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/jbuf.c b/src/jbuf.c
index a0d6185403..95a49e66ca 100644
--- a/src/jbuf.c
+++ b/src/jbuf.c
@@ -303,9 +303,12 @@ int jbuf_alloc(struct jbuf **jbp, uint32_t min, uint32_t max)
  */
 int  jbuf_resize(struct jbuf *jb, uint32_t packets)
 {
-	if (packets <= jb->packets)
+	if (!jb)
 		return EINVAL;
 
+	if (packets <= jb->packets)
+		return 0;
+
 	for (uint32_t i=jb->packets; i<packets; i++) {
 		struct packet *p = mem_zalloc(sizeof(*p), NULL);
 		if (!p)