From: Ming Lei <ming.lei@canonical.com>
To: Daniel Wagner <wagi@monom.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Daniel Wagner <daniel.wagner@bmw-carit.de>,
"Luis R . Rodriguez" <mcgrof@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH v4 2/4] firmware: encapsulate firmware loading status
Date: Thu, 8 Sep 2016 23:49:13 +0800 [thread overview]
Message-ID: <CACVXFVPS1_kSdFyc2XnBxW5uk34SP-=BHLRHBHSLK+z78jdkdg@mail.gmail.com> (raw)
In-Reply-To: <a7bd86ff-4dad-229b-bca7-063096824aed@monom.org>
On Thu, Sep 8, 2016 at 8:26 PM, Daniel Wagner <wagi@monom.org> wrote:
> Hi Ming,
>
> On 09/08/2016 01:26 PM, Ming Lei wrote:
>>
>> On Wed, Sep 7, 2016 at 4:45 PM, Daniel Wagner <wagi@monom.org> wrote:
>>>
>>> From: Daniel Wagner <daniel.wagner@bmw-carit.de>
>>> +static int fw_status_wait_timeout(struct fw_status *fw_st, long timeout)
>>> +{
>>> + int ret;
>>> +
>>> + ret =
>>> wait_for_completion_interruptible_timeout(&fw_st->completion,
>>> + timeout);
>>> + if (ret == 0 && test_bit(FW_STATUS_ABORTED, &fw_st->status))
>>> + return -ENOENT;
>>
>>
>> I guess the check should have been OR instead of AND, right?
>
>
>
> Good catch. It should be
>
> if (ret != 0 && test_bit(...))
> return -ENOENT;
Another question, why do you want to return -ENOENT when
userspace aborts the load? And looks it will always be override as
-EAGAIN.
>
> in case where we abort the operation instead of timing out.
>
> cheers,
> daniel
next prev parent reply other threads:[~2016-09-08 15:49 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-07 8:45 [PATCH v4 0/4] firmware: encapsulate firmware loading status Daniel Wagner
2016-09-07 8:45 ` [PATCH v4 1/4] firmware: Move umh locking code into fw_load_from_user_helper() Daniel Wagner
2016-09-07 23:33 ` Luis R. Rodriguez
2016-09-08 12:41 ` Daniel Wagner
2016-09-08 14:55 ` Luis R. Rodriguez
2016-09-08 15:37 ` Ming Lei
2016-09-08 20:11 ` Luis R. Rodriguez
2016-09-09 1:22 ` Ming Lei
[not found] ` <CAB=NE6XK9g9muQ8p5+VaVGt2t0E_4K0wiavacQGqt_S4PyN28A@mail.gmail.com>
2016-09-09 4:19 ` Ming Lei
2016-09-09 22:10 ` Luis R. Rodriguez
[not found] ` <efba9730-d3bc-1fd4-2511-e509a4c60971@bmw-carit.de>
2016-09-15 15:43 ` Luis R. Rodriguez
2016-09-07 8:45 ` [PATCH v4 2/4] firmware: encapsulate firmware loading status Daniel Wagner
2016-09-08 1:39 ` Luis R. Rodriguez
2016-09-08 8:05 ` Daniel Wagner
2016-09-08 9:45 ` Daniel Wagner
2016-09-08 11:26 ` Ming Lei
2016-09-08 12:26 ` Daniel Wagner
2016-09-08 15:49 ` Ming Lei [this message]
2016-09-09 11:43 ` Daniel Wagner
2016-09-08 12:32 ` Daniel Wagner
2016-09-07 8:45 ` [PATCH v4 3/4] firmware: Drop bit ops in favor of simple state machine Daniel Wagner
2016-09-08 1:45 ` Luis R. Rodriguez
2016-09-08 12:44 ` Daniel Wagner
2016-09-07 8:45 ` [PATCH v4 4/4] firmware: Do not use fw_lock for fw_status protection Daniel Wagner
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