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authorAlexander Stein2023-04-24 16:16:48 +0200
committerJakub Kicinski2023-04-24 18:13:45 -0700
commitaed8fdad2152d946add50bec00a6b07c457bdcdf (patch)
treecd621f7bc2f58aa365c5244760a5a18d12876bbf
parente515c330d7e22692d03475740fa45d179281cdf7 (diff)
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>
-rw-r--r--drivers/net/phy/phy_device.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index d373446ab5ac..17d0d0555a79 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -3028,6 +3028,7 @@ static int of_phy_led(struct phy_device *phydev,
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);
@@ -3037,10 +3038,13 @@ static int of_phy_led(struct phy_device *phydev,
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)