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From: "Rob Herring (Arm)" <robh@kernel.org>
To: Aaro Koskinen <aaro.koskinen@iki.fi>,
	Andreas Kemnade <andreas@kemnade.info>,
	Kevin Hilman <khilman@baylibre.com>,
	Roger Quadros <rogerq@kernel.org>,
	Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] bus: ti-sysc: Use of_property_present()
Date: Wed, 31 Jul 2024 13:12:39 -0600	[thread overview]
Message-ID: <20240731191312.1710417-1-robh@kernel.org> (raw)

Use of_property_present() to test for property presence rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.

The code was also incorrectly assigning the return value to a 'struct
property' pointer. It didn't matter as "prop" was never dereferenced.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 drivers/bus/ti-sysc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 2b59ef61dda2..7caaf89f3bf2 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -2569,14 +2569,12 @@ static const struct sysc_dts_quirk sysc_dts_quirks[] = {
 static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
 				  bool is_child)
 {
-	const struct property *prop;
-	int i, len;
+	int i;
 
 	for (i = 0; i < ARRAY_SIZE(sysc_dts_quirks); i++) {
 		const char *name = sysc_dts_quirks[i].name;
 
-		prop = of_get_property(np, name, &len);
-		if (!prop)
+		if (!of_property_present(np, name))
 			continue;
 
 		ddata->cfg.quirks |= sysc_dts_quirks[i].mask;
-- 
2.43.0


             reply	other threads:[~2024-07-31 19:13 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-31 19:12 Rob Herring (Arm) [this message]
2024-08-03 14:56 ` [PATCH] bus: ti-sysc: Use of_property_present() Roger Quadros
2024-08-05 17:36   ` Kevin Hilman
2024-08-06  5:40     ` Roger Quadros
2024-08-05 17:37 ` Kevin Hilman

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