linux-kernel - [PATCH v2] opp: ti: Use device_get_match

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231101144501.118972-1-robh@kernel.org>
Date:   Wed,  1 Nov 2023 09:45:00 -0500
From:   Rob Herring <robh@...nel.org>
To:     Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] opp: ti: Use device_get_match_data()

Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.

As this driver only does DT based matching, of_match_device() will never
return NULL if we've gotten to probe(). Therefore, the NULL check and
error return for it can be dropped.

Signed-off-by: Rob Herring <robh@...nel.org>
---
v2:
 - Add missing commit msg
---
 drivers/opp/ti-opp-supply.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/opp/ti-opp-supply.c b/drivers/opp/ti-opp-supply.c
index 8f3f13fbbb25..e3b97cd1fbbf 100644
--- a/drivers/opp/ti-opp-supply.c
+++ b/drivers/opp/ti-opp-supply.c
@@ -18,6 +18,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_opp.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 
@@ -373,23 +374,15 @@ static int ti_opp_supply_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device *cpu_dev = get_cpu_device(0);
-	const struct of_device_id *match;
 	const struct ti_opp_supply_of_data *of_data;
 	int ret = 0;
 
-	match = of_match_device(ti_opp_supply_of_match, dev);
-	if (!match) {
-		/* We do not expect this to happen */
-		dev_err(dev, "%s: Unable to match device\n", __func__);
-		return -ENODEV;
-	}
-	if (!match->data) {
+	of_data = device_get_match_data(dev);
+	if (!of_data) {
 		/* Again, unlikely.. but mistakes do happen */
 		dev_err(dev, "%s: Bad data in match\n", __func__);
 		return -EINVAL;
 	}
-	of_data = match->data;
-
 	dev_set_drvdata(dev, (void *)of_data);
 
 	/* If we need optimized voltage */
-- 
2.42.0