linux-kernel - [PATCH linux-next] hwrng: n2-drv - Use device_get_match

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Message-ID: <202211171710153200734@zte.com.cn>
Date:   Thu, 17 Nov 2022 17:10:15 +0800 (CST)
From:   <ye.xingchen@....com.cn>
To:     <herbert@...dor.apana.org.au>
Cc:     <olivia@...enic.com>, <linux-crypto@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH linux-next] hwrng: n2-drv - Use device_get_match_data() to simplify the

 code

From: ye xingchen <ye.xingchen@....com.cn>

Directly get the match data with device_get_match_data().

Signed-off-by: ye xingchen <ye.xingchen@....com.cn>
---
 drivers/char/hw_random/n2-drv.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index 73e408146420..2f784addb717 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -695,20 +695,15 @@ static void n2rng_driver_version(void)
 static const struct of_device_id n2rng_match[];
 static int n2rng_probe(struct platform_device *op)
 {
-	const struct of_device_id *match;
 	int err = -ENOMEM;
 	struct n2rng *np;

-	match = of_match_device(n2rng_match, &op->dev);
-	if (!match)
-		return -EINVAL;
-
 	n2rng_driver_version();
 	np = devm_kzalloc(&op->dev, sizeof(*np), GFP_KERNEL);
 	if (!np)
 		goto out;
 	np->op = op;
-	np->data = (struct n2rng_template *)match->data;
+	np->data = (struct n2rng_template *) device_get_match_data(&op->dev);

 	INIT_DELAYED_WORK(&np->work, n2rng_work);

-- 
2.25.1