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From: Chen Gang <gang.chen@asianux.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] kernel/module.c: for looping, need use 'goto' instead of 'break' to jump out in time
Date: Wed, 08 May 2013 11:09:10 +0800	[thread overview]
Message-ID: <5189C1D6.1040209@asianux.com> (raw)
In-Reply-To: <87ip2unwkt.fsf@rustcorp.com.au>

On 2013年05月08日 08:29, Rusty Russell wrote:
> Chen Gang <gang.chen@asianux.com> writes:
>> > In the 'for' looping, when error occurs, the 'break' only jump out of
>> > 'switch', and still in 'for' looping.  If error occurs multiple times,
>> > the original error value will be overwrite.
>> >
>> > Currently, that will not cause issue, but still better to improve it,
>> > so that let it return the first real error code in time.
> We choose to print all the problems, rather than just one.  I don't
> really mind though.
> 

It sounds good: "choose to print all the problems, rather than just one"

If so, it seems enough to only return a bool value to known whether
success or fail, do not need the error details any more (since they are
already been printed)

> It we want this patch, it would be neater to just 'return -ENOEXEC'
> and 'return PTR_ERR(ksym) ?: -ENOENT'.

If we really want this patch (still only print the first error, and
return the real error value), I should send patch v2 (also 'ret' is
obsoleted)

Thanks.

-- 
Chen Gang

Asianux Corporation

  reply	other threads:[~2013-05-08  3:10 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-07  6:27 [PATCH] kernel/module.c: for looping, need use 'goto' instead of 'break' to jump out in time Chen Gang
2013-05-08  0:29 ` Rusty Russell
2013-05-08  3:09   ` Chen Gang [this message]
2013-05-13  1:17     ` Rusty Russell
2013-05-13  3:33       ` Chen Gang
2013-05-13 12:24         ` [PATCH v2] kernel/module.c: cleanup patch for looping, let return 'bool' value instead of real error number Chen Gang
2013-05-14  2:16           ` Chen Gang
2013-05-17  4:33             ` [PATCH v3] kernel/module.c: need return the first error code to upper caller when error occurs Chen Gang
2013-05-22 11:26               ` Chen Gang
2013-05-23  3:54                 ` Rusty Russell
2013-05-23  5:13                   ` Chen Gang

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