linux-kernel - [PATCH 4/6] crypto: sa2ul - Use of_device_get_match

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Message-ID: <20210514161246.22517-5-s-anna@ti.com>
Date:   Fri, 14 May 2021 11:12:44 -0500
From:   Suman Anna <s-anna@...com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>
CC:     Deepak Saxena <dsaxena@...xity.net>,
        Tero Kristo <kristo@...nel.org>, Keerthy <j-keerthy@...com>,
        Gowtham Tammana <g-tammana@...com>,
        Vaibhav Gupta <v_gupta@...com>, <linux-crypto@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Suman Anna <s-anna@...com>
Subject: [PATCH 4/6] crypto: sa2ul - Use of_device_get_match_data() helper

Simplify the probe function by using the of_device_get_match_data()
helper instead of open coding. The logic is also moved up to fix the
missing pm_runtime cleanup in case of a match failure.

Fixes: 0bc42311cdff ("crypto: sa2ul - Add support for AM64")
Signed-off-by: Suman Anna <s-anna@...com>
---
 drivers/crypto/sa2ul.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index a215daedf78a..9f077ec9dbb7 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -2388,7 +2388,6 @@ MODULE_DEVICE_TABLE(of, of_match);
 
 static int sa_ul_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *match;
 	struct device *dev = &pdev->dev;
 	struct device_node *node = dev->of_node;
 	struct resource *res;
@@ -2400,6 +2399,10 @@ static int sa_ul_probe(struct platform_device *pdev)
 	if (!dev_data)
 		return -ENOMEM;
 
+	dev_data->match_data = of_device_get_match_data(dev);
+	if (!dev_data->match_data)
+		return -ENODEV;
+
 	sa_k3_dev = dev;
 	dev_data->dev = dev;
 	dev_data->pdev = pdev;
@@ -2420,13 +2423,6 @@ static int sa_ul_probe(struct platform_device *pdev)
 	if (ret)
 		goto destroy_dma_pool;
 
-	match = of_match_node(of_match, dev->of_node);
-	if (!match) {
-		dev_err(dev, "No compatible match found\n");
-		return -ENODEV;
-	}
-	dev_data->match_data = match->data;
-
 	spin_lock_init(&dev_data->scid_lock);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	saul_base = devm_ioremap_resource(dev, res);
-- 
2.30.1