From: jsg <jsg@openbsd.org>
Date: Mon, 27 Jun 2016 13:06:41 +0000 (+0000)
Subject: Fix a memory leak in an error path.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=3c184ea24805722634a8684e3fc7dd05bf8fb426;p=openbsd

Fix a memory leak in an error path.
ok mikeb@
---

diff --git a/sys/dev/pv/hyperv.c b/sys/dev/pv/hyperv.c
index 16d2d18413d..d99d9f8f29d 100644
--- a/sys/dev/pv/hyperv.c
+++ b/sys/dev/pv/hyperv.c
@@ -1487,8 +1487,10 @@ hv_handle_alloc(struct hv_channel *ch, void *buffer, uint32_t buflen,
 
 	/* Prepare array of frame addresses */
 	if ((frames = mallocarray(total, sizeof(*frames), M_DEVBUF, M_ZERO |
-	    waitok)) == NULL)
+	    waitok)) == NULL) {
+		free(msg, M_DEVBUF, sizeof(*msg));
 		return (ENOMEM);
+	}
 	for (i = 0; i < total; i++) {
 		if (!pmap_extract(pmap_kernel(), (vaddr_t)buffer +
 		    PAGE_SIZE * i, &pa)) {