[PATCH] clk: Use of_property_present()

From: Rob Herring (Arm)
Date: Wed Jul 31 2024 - 15:14:10 EST


Use of_property_present() to test for property presence rather than
of_(find|get)_property(). This is part of a larger effort to remove
callers of of_find_property() and similar functions.
of_(find|get)_property() leak the DT struct property and data pointers
which is a problem for dynamically allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
drivers/clk/clk.c | 2 +-
drivers/clk/renesas/clk-mstp.c | 2 +-
drivers/clk/versatile/clk-sp810.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 285ed1ad8a37..7264cf6165ce 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -5232,7 +5232,7 @@ static int of_parse_clkspec(const struct device_node *np, int index,
* clocks.
*/
np = np->parent;
- if (np && !of_get_property(np, "clock-ranges", NULL))
+ if (np && !of_property_present(np, "clock-ranges"))
break;
index = 0;
}
diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c
index 5304c977562f..5bc473c2adb3 100644
--- a/drivers/clk/renesas/clk-mstp.c
+++ b/drivers/clk/renesas/clk-mstp.c
@@ -207,7 +207,7 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
for (i = 0; i < MSTP_MAX_CLOCKS; ++i)
clks[i] = ERR_PTR(-ENOENT);

- if (of_find_property(np, "clock-indices", &i))
+ if (of_property_present(np, "clock-indices"))
idxname = "clock-indices";
else
idxname = "renesas,clock-indices";
diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c
index 45adac1b4630..033d4f78edc8 100644
--- a/drivers/clk/versatile/clk-sp810.c
+++ b/drivers/clk/versatile/clk-sp810.c
@@ -110,7 +110,7 @@ static void __init clk_sp810_of_setup(struct device_node *node)
init.parent_names = parent_names;
init.num_parents = num;

- deprecated = !of_find_property(node, "assigned-clock-parents", NULL);
+ deprecated = !of_property_present(node, "assigned-clock-parents");

for (i = 0; i < ARRAY_SIZE(sp810->timerclken); i++) {
snprintf(name, sizeof(name), "sp810_%d_%d", instance, i);
--
2.43.0