linux-kernel - [PATCH] vhost: vdpa: remove unnecessary null check

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Date:   Mon, 30 Mar 2020 18:50:40 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Tiwei Bie <tiwei.bie@...el.com>,
        Eugenio Pérez <eperezma@...hat.com>
Cc:     kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] vhost: vdpa: remove unnecessary null check

container_of is never null, so this null check is
unnecessary.

Addresses-Coverity-ID: 1492006 ("Logically dead code")
Fixes: 20453a45fb06 ("vhost: introduce vDPA-based backend")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 drivers/vhost/vdpa.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 421f02a8530a..3d2cb811757a 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -678,8 +678,6 @@ static int vhost_vdpa_open(struct inode *inode, struct file *filep)
 	int nvqs, i, r, opened;
 
 	v = container_of(inode->i_cdev, struct vhost_vdpa, cdev);
-	if (!v)
-		return -ENODEV;
 
 	opened = atomic_cmpxchg(&v->opened, 0, 1);
 	if (opened)
-- 
2.26.0