linux-kernel - [PATCH] drivers/virt/fsl_hypervisor: remove an unneeded variable

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Date:   Sun, 12 Dec 2021 15:40:47 +0800
From:   Jason Wang <wangborong@...rlc.com>
To:     wangborong@...rlc.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] drivers/virt/fsl_hypervisor: remove an unneeded variable

The variable `ret' used for returning is never changed in function
`fsl_hv_close'. So that it can be removed and just return its
initial value 0 at the end of `fsl_hv_close' function.

Signed-off-by: Jason Wang <wangborong@...rlc.com>
---
 drivers/virt/fsl_hypervisor.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c
index 46ee0a0998b6..e49bec8bc8a4 100644
--- a/drivers/virt/fsl_hypervisor.c
+++ b/drivers/virt/fsl_hypervisor.c
@@ -687,15 +687,13 @@ static int fsl_hv_close(struct inode *inode, struct file *filp)
 	struct doorbell_queue *dbq = filp->private_data;
 	unsigned long flags;
 
-	int ret = 0;
-
 	spin_lock_irqsave(&db_list_lock, flags);
 	list_del(&dbq->list);
 	spin_unlock_irqrestore(&db_list_lock, flags);
 
 	kfree(dbq);
 
-	return ret;
+	return 0;
 }
 
 static const struct file_operations fsl_hv_fops = {
-- 
2.34.1