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From:   Markus Elfring <Markus.Elfring@web.de>
Subject: [PATCH] thermal: Delete an error message in four functions
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Cc:     LKML <linux-kernel@vger.kernel.org>,
        kernel-janitors@vger.kernel.org,
        Tang Bin <tangbin@cmss.chinamobile.com>
Message-ID: <05f49ae7-5cc7-d6a0-fc3d-abaf2a0b373c@web.de>
Date:   Sun, 5 Apr 2020 18:50:38 +0200
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 5 Apr 2020 18:35:16 +0200

The function =E2=80=9Cplatform_get_irq=E2=80=9D can log an error already.
Thus omit redundant messages for the exception handling in the
calling functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
=2D--
 drivers/thermal/rockchip_thermal.c          | 4 +---
 drivers/thermal/st/st_thermal_memmap.c      | 4 +---
 drivers/thermal/st/stm_thermal.c            | 4 +---
 drivers/thermal/ti-soc-thermal/ti-bandgap.c | 5 ++---
 4 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip=
_thermal.c
index 7c1a8bccdcba..15a71ecc916c 100644
=2D-- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1241,10 +1241,8 @@ static int rockchip_thermal_probe(struct platform_d=
evice *pdev)
 		return -ENXIO;

 	irq =3D platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "no irq resource?\n");
+	if (irq < 0)
 		return -EINVAL;
-	}

 	thermal =3D devm_kzalloc(&pdev->dev, sizeof(struct rockchip_thermal_data=
),
 			       GFP_KERNEL);
diff --git a/drivers/thermal/st/st_thermal_memmap.c b/drivers/thermal/st/s=
t_thermal_memmap.c
index a824b78dabf8..a0114452d11f 100644
=2D-- a/drivers/thermal/st/st_thermal_memmap.c
+++ b/drivers/thermal/st/st_thermal_memmap.c
@@ -94,10 +94,8 @@ static int st_mmap_register_enable_irq(struct st_therma=
l_sensor *sensor)
 	int ret;

 	sensor->irq =3D platform_get_irq(pdev, 0);
-	if (sensor->irq < 0) {
-		dev_err(dev, "failed to register IRQ\n");
+	if (sensor->irq < 0)
 		return sensor->irq;
-	}

 	ret =3D devm_request_threaded_irq(dev, sensor->irq,
 					NULL, st_mmap_thermal_trip_handler,
diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_the=
rmal.c
index 9314e3df6a42..331e2b768df5 100644
=2D-- a/drivers/thermal/st/stm_thermal.c
+++ b/drivers/thermal/st/stm_thermal.c
@@ -385,10 +385,8 @@ static int stm_register_irq(struct stm_thermal_sensor=
 *sensor)
 	int ret;

 	sensor->irq =3D platform_get_irq(pdev, 0);
-	if (sensor->irq < 0) {
-		dev_err(dev, "%s: Unable to find IRQ\n", __func__);
+	if (sensor->irq < 0)
 		return sensor->irq;
-	}

 	ret =3D devm_request_threaded_irq(dev, sensor->irq,
 					NULL,
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal=
/ti-soc-thermal/ti-bandgap.c
index 263b0420fbe4..ab19ceff6e2a 100644
=2D-- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -772,10 +772,9 @@ static int ti_bandgap_talert_init(struct ti_bandgap *=
bgp,
 	int ret;

 	bgp->irq =3D platform_get_irq(pdev, 0);
-	if (bgp->irq < 0) {
-		dev_err(&pdev->dev, "get_irq failed\n");
+	if (bgp->irq < 0)
 		return bgp->irq;
-	}
+
 	ret =3D request_threaded_irq(bgp->irq, NULL,
 				   ti_bandgap_talert_irq_handler,
 				   IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
=2D-
2.26.0