2023-02-14 16:29:02

by Uwe Kleine-König

[permalink] [raw]
Subject: [PATCH 3/3] hwrng: xgene - Improve error reporting for problems during .remove()

Returning an error value in a platform driver's remove callback results in
a generic error message being emitted by the driver core, but otherwise it
doesn't make a difference. The device goes away anyhow.

As the driver already emits a better error message than the core, suppress
the generic error message by returning zero unconditionally.
---
drivers/char/hw_random/xgene-rng.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/xgene-rng.c b/drivers/char/hw_random/xgene-rng.c
index 31662614a48f..c67d3185b5b6 100644
--- a/drivers/char/hw_random/xgene-rng.c
+++ b/drivers/char/hw_random/xgene-rng.c
@@ -366,7 +366,7 @@ static int xgene_rng_remove(struct platform_device *pdev)
if (rc)
dev_err(&pdev->dev, "RNG init wakeup failed error %d\n", rc);

- return rc;
+ return 0;
}

static const struct of_device_id xgene_rng_of_match[] = {
--
2.39.1



2023-03-14 09:04:21

by Uwe Kleine-König

[permalink] [raw]
Subject: Re: [PATCH 3/3] hwrng: xgene - Improve error reporting for problems during .remove()

Hello,

On Tue, Feb 14, 2023 at 05:28:29PM +0100, Uwe Kleine-K?nig wrote:
> Returning an error value in a platform driver's remove callback results in
> a generic error message being emitted by the driver core, but otherwise it
> doesn't make a difference. The device goes away anyhow.
>
> As the driver already emits a better error message than the core, suppress
> the generic error message by returning zero unconditionally.

I forgot to add a S-o-b line here. Stephen Rothwell pointed that out for
the applied patch in next.

I don't know how/if Herbert will fix this, but for the Record:

Signed-off-by: Uwe Kleine-K?nig <[email protected]>

Best regards
Uwe

--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | https://www.pengutronix.de/ |


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2023-03-14 09:07:49

by Herbert Xu

[permalink] [raw]
Subject: Re: [PATCH 3/3] hwrng: xgene - Improve error reporting for problems during .remove()

On Tue, Mar 14, 2023 at 10:04:09AM +0100, Uwe Kleine-K?nig wrote:
>
> I don't know how/if Herbert will fix this, but for the Record:
>
> Signed-off-by: Uwe Kleine-K?nig <[email protected]>

I've fixed it in my tree. Thanks!
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt