[PATCH] Make sure therm_adt746x only handles known hardware
This patch limits therm_adt746x to currently existing fan controllers in Apple laptops. It may avoid problems with future hardware. Signed-off-by: Colin Leroy <colin@colino.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -545,6 +545,12 @@ thermostat_init(void)
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else
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return -ENODEV;
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prop = (u32 *)get_property(np, "hwsensor-params-version", NULL);
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printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
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(*prop == 1)?"":"un");
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if (*prop != 1)
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return -ENODEV;
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prop = (u32 *)get_property(np, "reg", NULL);
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if (!prop)
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return -ENODEV;
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