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Message-Id: <1412623073-6166-3-git-send-email-minyard@acm.org>
Date: Mon, 6 Oct 2014 14:17:51 -0500
From: minyard@....org
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linux Kernel <linux-kernel@...r.kernel.org>,
OpenIPMI Developers <openipmi-developer@...ts.sourceforge.net>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Corey Minyard <cminyard@...sta.com>
Subject: [PATCH 2/4] ipmi/of: Don't use unavailable interfaces
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
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 <benh@...nel.crashing.org>
Signed-off-by: Corey Minyard <cminyard@...sta.com>
---
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 5d66568..4fc8931 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");
--
1.8.3.1
--
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