diff mbox series

hwmon: vexpress: Use of_property_present()

Message ID 20240731191312.1710417-13-robh@kernel.org (mailing list archive)
State Accepted
Headers show
Series hwmon: vexpress: Use of_property_present() | expand

Commit Message

Rob Herring (Arm) July 31, 2024, 7:12 p.m. UTC
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.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 drivers/hwmon/vexpress-hwmon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Sudeep Holla July 31, 2024, 7:19 p.m. UTC | #1
On Wed, Jul 31, 2024 at 01:12:51PM -0600, Rob Herring (Arm) wrote:
> 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.
>

Guenter,

I assume you will pick this up.

Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Guenter Roeck July 31, 2024, 8:27 p.m. UTC | #2
On Wed, Jul 31, 2024 at 01:12:51PM -0600, Rob Herring (Arm) wrote:
> 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.
> 
> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>

Applied.

Thanks,
Guenter
diff mbox series

Patch

diff --git a/drivers/hwmon/vexpress-hwmon.c b/drivers/hwmon/vexpress-hwmon.c
index d82a3b454d0e..a2e350f52a9e 100644
--- a/drivers/hwmon/vexpress-hwmon.c
+++ b/drivers/hwmon/vexpress-hwmon.c
@@ -72,7 +72,7 @@  static umode_t vexpress_hwmon_attr_is_visible(struct kobject *kobj,
 				struct device_attribute, attr);
 
 	if (dev_attr->show == vexpress_hwmon_label_show &&
-			!of_get_property(dev->of_node, "label", NULL))
+			!of_property_present(dev->of_node, "label"))
 		return 0;
 
 	return attr->mode;