git: 1b85302234dd - stable/13 - bhyve/snapshot: fix pthread_create() error check

The branch stable/13 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=1b85302234dd6afb33d8a6494de6a79a8e7f6f48

commit 1b85302234dd6afb33d8a6494de6a79a8e7f6f48
Author:     Robert Wing <rew@FreeBSD.org>
AuthorDate: 2022-01-19 17:40:06 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2023-01-26 18:46:49 +0000

    bhyve/snapshot: fix pthread_create() error check
    
    pthread_create() returns 0 on success or an error number on failure.
    
    Reviewed by:    khng, markj
    Differential Revision:  https://reviews.freebsd.org/D33930
    
    (cherry picked from commit 51fbd894ddadd6a1bc4cb72de8ac4e92c013bd36)
---
 usr.sbin/bhyve/snapshot.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/usr.sbin/bhyve/snapshot.c b/usr.sbin/bhyve/snapshot.c
index b99c8beed2be..85c56d519390 100644
--- a/usr.sbin/bhyve/snapshot.c
+++ b/usr.sbin/bhyve/snapshot.c
@@ -1520,7 +1520,7 @@ init_checkpoint_thread(struct vmctx *ctx)
 	int socket_fd;
 	pthread_t checkpoint_pthread;
 	char vmname_buf[MAX_VMNAME];
-	int ret, err = 0;
+	int err;
 
 	memset(&addr, 0, sizeof(addr));
 
@@ -1555,12 +1555,10 @@ init_checkpoint_thread(struct vmctx *ctx)
 	checkpoint_info->ctx = ctx;
 	checkpoint_info->socket_fd = socket_fd;
 
-	ret = pthread_create(&checkpoint_pthread, NULL, checkpoint_thread,
+	err = pthread_create(&checkpoint_pthread, NULL, checkpoint_thread,
 		checkpoint_info);
-	if (ret < 0) {
-		err = ret;
+	if (err != 0)
 		goto fail;
-	}
 
 	return (0);
 fail: