linux-kernel - [PATCH AUTOSEL 4.19 019/191] ipmi_si_pci: fix NULL device in ipmi

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Date:   Sat,  9 Nov 2019 21:37:21 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Meelis Roos <mroos@...ux.ee>, Corey Minyard <cminyard@...sta.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.19 019/191] ipmi_si_pci: fix NULL device in ipmi_si error message

From: Meelis Roos <mroos@...ux.ee>

[ Upstream commit 01508d9ebf4fc863f2fc4561c390bf4b7c3301a6 ]

I noticed that 4.17.0 logs the follwing during ipmi_si setup:

 ipmi_si 0000:01:04.6: probing via PCI
 (NULL device *): Could not setup I/O space
 ipmi_si 0000:01:04.6: [mem 0xf5ef0000-0xf5ef00ff] regsize 1 spacing 1 irq 21

Fix the "NULL device *) by moving io.dev assignment before its potential
use by ipmi_pci_probe_regspacing().

Result:
 ipmi_si 0000:01:04.6: probing via PCI
 ipmi_si 0000:01:04.6: Could not setup I/O space
 ipmi_si 0000:01:04.6: [mem 0xf5ef0000-0xf5ef00ff] regsize 1 spacing 1 irq 21

Signed-off-by: Meelis Roos <mroos@...ux.ee>
Signed-off-by: Corey Minyard <cminyard@...sta.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/char/ipmi/ipmi_si_pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si_pci.c b/drivers/char/ipmi/ipmi_si_pci.c
index f54ca6869ed2c..022e03634ce2a 100644
--- a/drivers/char/ipmi/ipmi_si_pci.c
+++ b/drivers/char/ipmi/ipmi_si_pci.c
@@ -120,6 +120,8 @@ static int ipmi_pci_probe(struct pci_dev *pdev,
 	}
 	io.addr_data = pci_resource_start(pdev, 0);
 
+	io.dev = &pdev->dev;
+
 	io.regspacing = ipmi_pci_probe_regspacing(&io);
 	io.regsize = DEFAULT_REGSIZE;
 	io.regshift = 0;
@@ -128,8 +130,6 @@ static int ipmi_pci_probe(struct pci_dev *pdev,
 	if (io.irq)
 		io.irq_setup = ipmi_std_irq_setup;
 
-	io.dev = &pdev->dev;
-
 	dev_info(&pdev->dev, "%pR regsize %d spacing %d irq %d\n",
 		&pdev->resource[0], io.regsize, io.regspacing, io.irq);
 
-- 
2.20.1