jbuf: better err handling

cspiel1 · Oct 4, 2023 · 2d82a08 · 2d82a08
1 parent 16849a9
commit 2d82a08
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/jbuf.c b/src/jbuf.c
@@ -300,9 +300,12 @@ 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)