c06fb25d1f
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33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From c283782fc5d60c4d8169137c6f955aa3553d3b3d Mon Sep 17 00:00:00 2001
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From: Hui Wang <hui.wang@canonical.com>
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Date: Fri, 27 Sep 2024 19:46:10 +0800
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Subject: [PATCH] net: phy: realtek: Check the index value in
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led_hw_control_get
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Just like rtl8211f_led_hw_is_supported() and
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rtl8211f_led_hw_control_set(), the rtl8211f_led_hw_control_get() also
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needs to check the index value, otherwise the caller is likely to get
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an incorrect rules.
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Fixes: 17784801d888 ("net: phy: realtek: Add support for PHY LEDs on RTL8211F")
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Signed-off-by: Hui Wang <hui.wang@canonical.com>
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Reviewed-by: Marek Vasut <marex@denx.de>
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Link: https://patch.msgid.link/20240927114610.1278935-1-hui.wang@canonical.com
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/phy/realtek.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/net/phy/realtek.c
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+++ b/drivers/net/phy/realtek.c
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@@ -527,6 +527,9 @@ static int rtl8211f_led_hw_control_get(s
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{
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int val;
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+ if (index >= RTL8211F_LED_COUNT)
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+ return -EINVAL;
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+
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val = phy_read_paged(phydev, 0xd04, RTL8211F_LEDCR);
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if (val < 0)
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return val;
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