[PATCH net-next] net: mdio: Use of_property_count_u32_elems() to get property length

From: Rob Herring (Arm)
Date: Wed Jul 31 2024 - 16:17:28 EST


Replace of_get_property() with the type specific
of_property_count_u32_elems() to get the property length.

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@xxxxxxxxxx>
---
drivers/net/mdio/of_mdio.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index 08e607f62e10..2f4fc664d2e1 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c
@@ -390,7 +390,7 @@ EXPORT_SYMBOL(of_phy_get_and_connect);
bool of_phy_is_fixed_link(struct device_node *np)
{
struct device_node *dn;
- int len, err;
+ int err;
const char *managed;

/* New binding */
@@ -405,8 +405,7 @@ bool of_phy_is_fixed_link(struct device_node *np)
return true;

/* Old binding */
- if (of_get_property(np, "fixed-link", &len) &&
- len == (5 * sizeof(__be32)))
+ if (of_property_count_u32_elems(np, "fixed-link") == 5)
return true;

return false;
--
2.43.0