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7ace30aeb6
Backport upstream code split patch for qca8k needed for ipq40xx target to correctly implement a DSA driver. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
From 057bcf15db8e625276ddf02b2b7c668a3cb43f81 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Sun, 4 Sep 2022 23:46:24 +0200
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Subject: [net PATCH] net: dsa: qca8k: fix NULL pointer dereference for
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of_device_get_match_data
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of_device_get_match_data is called on priv->dev before priv->dev is
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actually set. Move of_device_get_match_data after priv->dev is correctly
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set to fix this kernel panic.
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Fixes: 3bb0844e7bcd ("net: dsa: qca8k: cache match data to speed up access")
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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---
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drivers/net/dsa/qca/qca8k-8xxx.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/dsa/qca/qca8k-8xxx.c
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+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
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@@ -1835,9 +1835,9 @@ qca8k_sw_probe(struct mdio_device *mdiod
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if (!priv)
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return -ENOMEM;
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- priv->info = of_device_get_match_data(priv->dev);
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priv->bus = mdiodev->bus;
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priv->dev = &mdiodev->dev;
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+ priv->info = of_device_get_match_data(priv->dev);
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priv->reset_gpio = devm_gpiod_get_optional(priv->dev, "reset",
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GPIOD_ASIS);
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