1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
From aed8fdad2152d946add50bec00a6b07c457bdcdf Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@ew.tq-group.com>
Date: Mon, 24 Apr 2023 16:16:48 +0200
Subject: [PATCH] net: phy: Fix reading LED reg property
'reg' is always encoded in 32 bits, thus it has to be read using the
function with the corresponding bit width.
Fixes: 01e5b728e9e4 ("net: phy: Add a binding for PHY LEDs")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230424141648.317944-1-alexander.stein@ew.tq-group.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phy_device.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2971,6 +2971,7 @@ static int of_phy_led(struct phy_device
struct led_init_data init_data = {};
struct led_classdev *cdev;
struct phy_led *phyled;
+ u32 index;
int err;
phyled = devm_kzalloc(dev, sizeof(*phyled), GFP_KERNEL);
@@ -2980,10 +2981,13 @@ static int of_phy_led(struct phy_device
cdev = &phyled->led_cdev;
phyled->phydev = phydev;
- err = of_property_read_u8(led, "reg", &phyled->index);
+ err = of_property_read_u32(led, "reg", &index);
if (err)
return err;
+ if (index > U8_MAX)
+ return -EINVAL;
+ phyled->index = index;
if (phydev->drv->led_brightness_set)
cdev->brightness_set_blocking = phy_led_set_brightness;
if (phydev->drv->led_blink_set)
|
