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net: phy: realtek: Check the index value in led_hw_control_get

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Just like rtl8211f_led_hw_is_supported() and
rtl8211f_led_hw_control_set(), the rtl8211f_led_hw_control_get() also
needs to check the index value, otherwise the caller is likely to get
an incorrect rules.

Fixes: 17784801d8 ("net: phy: realtek: Add support for PHY LEDs on RTL8211F")
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://patch.msgid.link/20240927114610.1278935-1-hui.wang@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Hui Wang 2024-09-27 19:46:10 +08:00 committed by Jakub Kicinski
parent aec7291003
commit c283782fc5
1 changed files with 3 additions and 0 deletions
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3
drivers/net/phy/realtek.c
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@ -527,6 +527,9 @@ static int rtl8211f_led_hw_control_get(struct phy_device *phydev, u8 index,
{
int val;
if (index >= RTL8211F_LED_COUNT)
return -EINVAL;
val = phy_read_paged(phydev, 0xd04, RTL8211F_LEDCR);
if (val < 0)
return val;