linux-kernel - [PATCH 4.4 035/230] thermal: int340x_thermal: Fix a NULL vs IS

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Date:   Fri, 22 Mar 2019 12:12:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 035/230] thermal: int340x_thermal: Fix a NULL vs IS_ERR() check

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 3fe931b31a4078395c1967f0495dcc9e5ec6b5e3 ]

The intel_soc_dts_iosf_init() function doesn't return NULL, it returns
error pointers.

Fixes: 4d0dd6c1576b ("Thermal/int340x/processor_thermal: Enable auxiliary DTS for Braswell")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Zhang Rui <rui.zhang@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/thermal/int340x_thermal/processor_thermal_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/int340x_thermal/processor_thermal_device.c b/drivers/thermal/int340x_thermal/processor_thermal_device.c
index ccc0ad02d0669..7f374ab5b1760 100644
--- a/drivers/thermal/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/int340x_thermal/processor_thermal_device.c
@@ -363,7 +363,7 @@ static int  proc_thermal_pci_probe(struct pci_dev *pdev,
 		proc_priv->soc_dts = intel_soc_dts_iosf_init(
 					INTEL_SOC_DTS_INTERRUPT_MSI, 2, 0);
 
-		if (proc_priv->soc_dts && pdev->irq) {
+		if (!IS_ERR(proc_priv->soc_dts) && pdev->irq) {
 			ret = pci_enable_msi(pdev);
 			if (!ret) {
 				ret = request_threaded_irq(pdev->irq, NULL,
-- 
2.19.1