From 08dc41696ad7f3f8bcb2ea8cb97935a6e79a1bd7 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 6 Oct 2014 14:17:51 -0500 Subject: [PATCH] ipmi/of: Don't use unavailable interfaces If an IPMI controller is used by the firmware and as such marked with a reserved status, we shouldn't use it. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Corey Minyard Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_si_intf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 5d665680ae33..4fc89310bfb5 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2658,6 +2658,9 @@ static int ipmi_probe(struct platform_device *dev) if (!match) return -EINVAL; + if (!of_device_is_available(np)) + return -EINVAL; + ret = of_address_to_resource(np, 0, &resource); if (ret) { dev_warn(&dev->dev, PFX "invalid address from OF\n"); -- 2.20.1