From: Markus Elfring <Markus.Elfring@web.de>
To: "Dan Carpenter" <error27@gmail.com>,
kernel-janitors@vger.kernel.org, linux-integrity@vger.kernel.org,
"Jarkko Sakkinen" <jarkko@kernel.org>,
"Peter Hüwe" <peterhuewe@gmx.de>
Cc: LKML <linux-kernel@vger.kernel.org>, Jason Gunthorpe <jgg@ziepe.ca>
Subject: Re: [PATCH] tpm: clean up error checking in setup_ring()
Date: Sun, 11 Oct 2026 11:30:13 +0200 [thread overview]
Message-ID: <74850205-dba2-4a97-951d-cda28be129c9@web.de> (raw)
In-Reply-To: <ar_DUjuGv-9vPzga@stanley.mountain>
> The bind_evtchn_to_irqhandler() function can never return 0.
…
I suggest to reconsider information once more also according to the probability
of return values from such a function.
https://elixir.bootlin.com/linux/v7.3-rc6/source/drivers/xen/events/events_base.c#L1453-L1461
bind_evtchn_to_irqhandler_chip()
https://elixir.bootlin.com/linux/v7.3-rc6/source/drivers/xen/events/events_base.c#L1432-L1451
…
> ---
> From static analysis. Untested.
>
> drivers/char/tpm/xen-tpmfront.c | 2 +-
…
Would you be looking for further collateral evolution?
https://elixir.bootlin.com/linux/v7.3-rc6/source/drivers/char/tpm/xen-tpmfront.c#L267-L272
Regards,
Markus
next prev parent reply other threads:[~2026-10-11 9:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-02 14:44 Dan Carpenter
2026-10-02 23:31 ` Jarkko Sakkinen
2026-10-05 3:43 ` Jarkko Sakkinen
2026-10-11 9:30 ` Markus Elfring [this message]
2026-10-11 18:15 ` Jarkko Sakkinen
2026-10-12 8:03 ` Markus Elfring
2026-10-12 13:09 ` Jarkko Sakkinen
2026-10-12 13:30 ` Markus Elfring
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