ath5k: remove permissions from debugfs files
Don't allow users to open debugfs files, because it can cause oopses. When a user opens some file, driver unlinks it and frees the corresponding structure, we will dereference freed memory. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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6badaaf772
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@ -380,13 +380,15 @@ ath5k_debug_init_device(struct ath5k_softc *sc)
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sc->debug.debugfs_phydir = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
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ath5k_global_debugfs);
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sc->debug.debugfs_debug = debugfs_create_file("debug", S_IWUSR | S_IRUGO,
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sc->debug.debugfs_debug = debugfs_create_file("debug",
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S_IWUSR | S_IRUSR,
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sc->debug.debugfs_phydir, sc, &fops_debug);
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sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUGO,
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sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR,
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sc->debug.debugfs_phydir, sc, &fops_registers);
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sc->debug.debugfs_beacon = debugfs_create_file("beacon", S_IWUSR | S_IRUGO,
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sc->debug.debugfs_beacon = debugfs_create_file("beacon",
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S_IWUSR | S_IRUSR,
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sc->debug.debugfs_phydir, sc, &fops_beacon);
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sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
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