From: asou <asou@openbsd.org>
Date: Mon, 26 Jul 2021 06:00:37 +0000 (+0000)
Subject: Add mtx_enter/mtx_leave in kvp_pool_keys().
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=1ab70bb7067937e34ac0e67bb350baa86e8821f7;p=openbsd

Add mtx_enter/mtx_leave in kvp_pool_keys().

ok mikeb
---

diff --git a/sys/dev/pv/hypervic.c b/sys/dev/pv/hypervic.c
index ef96dce7f44..ad5fc9b0c0b 100644
--- a/sys/dev/pv/hypervic.c
+++ b/sys/dev/pv/hypervic.c
@@ -759,14 +759,21 @@ kvp_pool_keys(struct kvp_pool *kvpl, int next, char *key, size_t *keylen)
 	struct kvp_entry *kpe;
 	int iter = 0;
 
+	mtx_enter(&kvpl->kvp_lock);
+
 	TAILQ_FOREACH(kpe, &kvpl->kvp_entries, kpe_entry) {
 		if (iter++ < next)
 			continue;
 		*keylen = strlen(kpe->kpe_key) + 1;
 		strlcpy(key, kpe->kpe_key, *keylen);
+
+		mtx_leave(&kvpl->kvp_lock);
+
 		return (0);
 	}
 
+	mtx_leave(&kvpl->kvp_lock);
+
 	return (-1);
 }