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Groups > linux.kernel > #1535380 > unrolled thread

[PATCH 1/1] net: caif: fix ineffective error check

Started byPan Bian <bianpan2016@163.com>
First post2016-12-03 12:40 +0100
Last post2016-12-03 22:10 +0100
Articles 4 — 3 participants

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  [PATCH 1/1] net: caif: fix ineffective error check Pan Bian <bianpan2016@163.com> - 2016-12-03 12:40 +0100
    Re: [PATCH 1/1] net: caif: fix ineffective error check Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-12-03 14:20 +0100
      Re: [PATCH 1/1] net: caif: fix ineffective error check Pan Bian <bianpan201602@163.com> - 2016-12-03 17:30 +0100
        Re: [PATCH 1/1] net: caif: fix ineffective error check Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-12-03 22:10 +0100

#1535380 — [PATCH 1/1] net: caif: fix ineffective error check

FromPan Bian <bianpan2016@163.com>
Date2016-12-03 12:40 +0100
Subject[PATCH 1/1] net: caif: fix ineffective error check
Message-ID<sKgPD-wb-1@gated-at.bofh.it>
In function caif_sktinit_module(), the check of the return value of
sock_register() seems ineffective. This patch fixes it.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188751

Signed-off-by: Pan Bian <bianpan2016@163.com>
---
 net/caif/caif_socket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index aa209b1..2a689a3 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -1108,7 +1108,7 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,
 static int __init caif_sktinit_module(void)
 {
 	int err = sock_register(&caif_family_ops);
-	if (!err)
+	if (err)
 		return err;
 	return 0;
 }
-- 
1.9.1

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#1535397

FromSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date2016-12-03 14:20 +0100
Message-ID<sKioq-1Lm-7@gated-at.bofh.it>
In reply to#1535380
Hello.

On 12/3/2016 2:18 PM, Pan Bian wrote:

> In function caif_sktinit_module(), the check of the return value of
> sock_register() seems ineffective. This patch fixes it.
>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188751
>
> Signed-off-by: Pan Bian <bianpan2016@163.com>
> ---
>  net/caif/caif_socket.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
> index aa209b1..2a689a3 100644
> --- a/net/caif/caif_socket.c
> +++ b/net/caif/caif_socket.c
> @@ -1108,7 +1108,7 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,
>  static int __init caif_sktinit_module(void)
>  {
>  	int err = sock_register(&caif_family_ops);
> -	if (!err)
> +	if (err)
>  		return err;

    Why not just:

	return sock_register(&caif_family_ops);

>  	return 0;
>  }

MBR, Sergei

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#1535453

FromPan Bian <bianpan201602@163.com>
Date2016-12-03 17:30 +0100
Message-ID<sKlmi-3FM-13@gated-at.bofh.it>
In reply to#1535397
From: PanBian <bianpan2016@163.com>

Hello Sergei,

On Sat, Dec 03, 2016 at 04:17:51PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 12/3/2016 2:18 PM, Pan Bian wrote:
> 
> >In function caif_sktinit_module(), the check of the return value of
> >sock_register() seems ineffective. This patch fixes it.
> >
> >Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188751
> >
> >Signed-off-by: Pan Bian <bianpan2016@163.com>
> >---
> > net/caif/caif_socket.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
> >index aa209b1..2a689a3 100644
> >--- a/net/caif/caif_socket.c
> >+++ b/net/caif/caif_socket.c
> >@@ -1108,7 +1108,7 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,
> > static int __init caif_sktinit_module(void)
> > {
> > 	int err = sock_register(&caif_family_ops);
> >-	if (!err)
> >+	if (err)
> > 		return err;
> 
>    Why not just:
> 
> 	return sock_register(&caif_family_ops);
>
	Your solution looks much cleaner.

	But I am not really sure whether it is the author's intention to
	return 0 anyway. Do you have any idea?

	Thanks!
> > 	return 0;
> > }
> 
> MBR, Sergei
> 

Best regards,
Pan

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#1535525

FromSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date2016-12-03 22:10 +0100
Message-ID<sKpJf-6rj-9@gated-at.bofh.it>
In reply to#1535453
On 12/03/2016 06:38 PM, Pan Bian wrote:

>>> In function caif_sktinit_module(), the check of the return value of
>>> sock_register() seems ineffective. This patch fixes it.
>>>
>>> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188751
>>>
>>> Signed-off-by: Pan Bian <bianpan2016@163.com>
>>> ---
>>> net/caif/caif_socket.c | 2 +-
>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
>>> index aa209b1..2a689a3 100644
>>> --- a/net/caif/caif_socket.c
>>> +++ b/net/caif/caif_socket.c
>>> @@ -1108,7 +1108,7 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,
>>> static int __init caif_sktinit_module(void)
>>> {
>>> 	int err = sock_register(&caif_family_ops);
>>> -	if (!err)
>>> +	if (err)
>>> 		return err;
>>
>>    Why not just:
>>
>> 	return sock_register(&caif_family_ops);
>>
> 	Your solution looks much cleaner.
>
> 	But I am not really sure whether it is the author's intention to
> 	return 0 anyway. Do you have any idea?

    I don't think so, the error check seems to have a typo.

[...]

> Best regards,
> Pan

MBR, Sergei

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