linux-kernel - [PATCH 01/20] clocksource: Remove dev_err() usage after platform_get

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Date:   Mon, 26 Aug 2019 22:43:48 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     tglx@...utronix.de
Cc:     linux-kernel@...r.kernel.org, Stephen Boyd <swboyd@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 01/20] clocksource: Remove dev_err() usage after platform_get_irq()

From: Stephen Boyd <swboyd@...omium.org>

We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 drivers/clocksource/em_sti.c | 4 +---
 drivers/clocksource/sh_cmt.c | 5 +----
 drivers/clocksource/sh_tmu.c | 5 +----
 3 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index 8e12b11e81b0..9039df4f90e2 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -291,10 +291,8 @@ static int em_sti_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, p);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "failed to get irq\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	/* map memory, let base point to the STI instance */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 55d3e03f2cd4..f6424b61e212 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -776,11 +776,8 @@ static int sh_cmt_register_clockevent(struct sh_cmt_channel *ch,
 	int ret;
 
 	irq = platform_get_irq(ch->cmt->pdev, ch->index);
-	if (irq < 0) {
-		dev_err(&ch->cmt->pdev->dev, "ch%u: failed to get irq\n",
-			ch->index);
+	if (irq < 0)
 		return irq;
-	}
 
 	ret = request_irq(irq, sh_cmt_interrupt,
 			  IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 49f1c805fc95..8c4f3753b36e 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -462,11 +462,8 @@ static int sh_tmu_channel_setup(struct sh_tmu_channel *ch, unsigned int index,
 		ch->base = tmu->mapbase + 8 + ch->index * 12;
 
 	ch->irq = platform_get_irq(tmu->pdev, index);
-	if (ch->irq < 0) {
-		dev_err(&tmu->pdev->dev, "ch%u: failed to get irq\n",
-			ch->index);
+	if (ch->irq < 0)
 		return ch->irq;
-	}
 
 	ch->cs_enabled = false;
 	ch->enable_count = 0;
-- 
2.17.1