linux-kernel - [PATCH 2/4] siox: Provide a devm variant of siox_master

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Message-ID:  <ad141dd22c7d95ad0bd347f257ce586e1afb22a4.1708328466.git.u.kleine-koenig@pengutronix.de>
Date: Mon, 19 Feb 2024 08:46:30 +0100
From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To: Thorsten Scherer <t.scherer@...elmann.de>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] siox: Provide a devm variant of siox_master_alloc()

This allows to simplify siox master drivers in the next step.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
 drivers/siox/siox-core.c | 24 ++++++++++++++++++++++++
 drivers/siox/siox.h      |  2 ++
 2 files changed, 26 insertions(+)

diff --git a/drivers/siox/siox-core.c b/drivers/siox/siox-core.c
index d4acab7036d6..9dd0bda03db3 100644
--- a/drivers/siox/siox-core.c
+++ b/drivers/siox/siox-core.c
@@ -707,6 +707,30 @@ struct siox_master *siox_master_alloc(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(siox_master_alloc);
 
+static void devm_siox_master_put(void *data)
+{
+	struct siox_master *smaster = data;
+
+	siox_master_put(smaster);
+}
+
+struct siox_master *devm_siox_master_alloc(struct device *dev,
+					   size_t size)
+{
+	struct siox_master *smaster;
+	int ret;
+
+	smaster = siox_master_alloc(dev, size);
+	if (!smaster)
+		return NULL;
+
+	ret = devm_add_action_or_reset(dev, devm_siox_master_put, smaster);
+	if (ret)
+		return NULL;
+
+	return smaster;
+}
+
 int siox_master_register(struct siox_master *smaster)
 {
 	int ret;
diff --git a/drivers/siox/siox.h b/drivers/siox/siox.h
index f08b43b713c5..b227e18b697a 100644
--- a/drivers/siox/siox.h
+++ b/drivers/siox/siox.h
@@ -45,5 +45,7 @@ static inline void siox_master_put(struct siox_master *smaster)
 	put_device(&smaster->dev);
 }
 
+struct siox_master *devm_siox_master_alloc(struct device *dev, size_t size);
+
 int siox_master_register(struct siox_master *smaster);
 void siox_master_unregister(struct siox_master *smaster);
-- 
2.43.0