Re: [PATCH] kernel/module.c: for looping, need use 'goto' instead of 'break' to jump out in time

From: Rusty Russell
Date: Sun May 12 2013 - 22:57:45 EST


Chen Gang <gang.chen@xxxxxxxxxxx> writes:
> On 2013å05æ08æ 08:29, Rusty Russell wrote:
>> Chen Gang <gang.chen@xxxxxxxxxxx> 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)

I would take such a patch, since it makes things a little neater. But
if you don't write it, I wouldn't write it myself, since it's
borderline.

Thanks,
Rusty.
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