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i2c: ocores: Avoid false-positive error log message.

Message ID 6185f3fc-35ed-4de2-8bf7-fb991555580c@EXC03-ATKLA.omicron.at
State Accepted
Commit dc4e10b62695558a39aafa65210f5980125285b3
Headers show
Series i2c: ocores: Avoid false-positive error log message. | expand

Commit Message

Stefan Lässer Dec. 3, 2020, 3:02 p.m. UTC
Since commit 7723f4c5ecdb ("driver core: platform: Add an error message to
platform_get_irq*()"), platform_get_irq() will call dev_err() on an error.
In case of i2c ocores this leads to a false-positive error being logged:

[ 4.173989] 007: ocores-i2c ocores-i2c: IRQ index 0 not found

i2c ocores already handles the case when the IRQ cannot be found and
therefore there is no benefit in having this error message being logged.

This commit switches to platform_get_irq_optional(), which does not log
in case the IRQ cannot be found.

Signed-off-by: Stefan Lässer <stefan.laesser@omicronenergy.com>
---
 drivers/i2c/busses/i2c-ocores.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Andrew Lunn Dec. 3, 2020, 3:20 p.m. UTC | #1
On Thu, Dec 03, 2020 at 04:02:52PM +0100, Stefan Lässer wrote:
> Since commit 7723f4c5ecdb ("driver core: platform: Add an error message to
> platform_get_irq*()"), platform_get_irq() will call dev_err() on an error.
> In case of i2c ocores this leads to a false-positive error being logged:
> 
> [ 4.173989] 007: ocores-i2c ocores-i2c: IRQ index 0 not found
> 
> i2c ocores already handles the case when the IRQ cannot be found and
> therefore there is no benefit in having this error message being logged.
> 
> This commit switches to platform_get_irq_optional(), which does not log
> in case the IRQ cannot be found.
> 
> Signed-off-by: Stefan Lässer <stefan.laesser@omicronenergy.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
Wolfram Sang Dec. 3, 2020, 8:20 p.m. UTC | #2
> > Signed-off-by: Stefan Lässer <stefan.laesser@omicronenergy.com>
> 
> Applied to for-current, thanks!

I meant for-next (because of a dependency), sorry for the noise.
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index a97cbaabd..273222e38 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -682,7 +682,7 @@  static int ocores_i2c_probe(struct platform_device *pdev)
 
 	init_waitqueue_head(&i2c->wait);
 
-	irq = platform_get_irq(pdev, 0);
+	irq = platform_get_irq_optional(pdev, 0);
 	/*
 	 * Since the SoC does have an interrupt, its DT has an interrupt
 	 * property - But this should be bypassed as the IRQ logic in this