linux-kernel - [PATCH] virtio_ring: Drop unnecessary initialization of detach_buf

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Date:   Mon, 26 Sep 2022 06:29:46 -0400
From:   Deming Wang <wangdeming@...pur.com>
To:     <mst@...hat.com>, <jasowang@...hat.com>,
        <virtualization@...ts.linux-foundation.org>,
        <linux-kernel@...r.kernel.org>
CC:     Deming Wang <wangdeming@...pur.com>
Subject: [PATCH] virtio_ring: Drop unnecessary initialization of detach_buf_packed

The variable is initialized but it is only used after its assignment.

Signed-off-by: Deming Wang <wangdeming@...pur.com>
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 8974c34b40fd..abac0a3de440 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1544,7 +1544,7 @@ static bool virtqueue_kick_prepare_packed(struct virtqueue *_vq)
 static void detach_buf_packed(struct vring_virtqueue *vq,
 			      unsigned int id, void **ctx)
 {
-	struct vring_desc_state_packed *state = NULL;
+	struct vring_desc_state_packed *state;
 	struct vring_packed_desc *desc;
 	unsigned int i, curr;
 
-- 
2.27.0