From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 7 Sep 2021 10:32:53 +0300
Subject: vdpa: potential uninitialized return in vhost_vdpa_va_map()
Patch-mainline: v5.15-rc4
Git-commit: be9c6bad9b46451ba5bb8d366c51e2475f374981
References: jsc#PED-1549

The concern here is that "ret" can be uninitialized if we hit the
"goto next" condition on every iteration through the loop.

Fixes: 41ba1b5f9d4b ("vdpa: Support transferring virtual addressing during DMA mapping")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210907073253.GB18254@kili
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/vhost/vdpa.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -640,7 +640,7 @@ static int vhost_vdpa_va_map(struct vhos
 	u64 offset, map_size, map_iova = iova;
 	struct vdpa_map_file *map_file;
 	struct vm_area_struct *vma;
-	int ret;
+	int ret = 0;
 
 	mmap_read_lock(dev->mm);