From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Jeff Dike <jdike@addtoit.com>,
user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net,
Anton Ivanov <aivanov@kot-begemot.co.uk>,
Dan Williams <dan.j.williams@intel.com>,
Hannes Reinecke <hare@suse.com>, Jens Axboe <axboe@fb.com>,
Richard Weinberger <richard@nod.at>,
LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>
Subject: Re: [PATCH 2/5] um: port: Delete three error messages for a failed memory allocation
Date: Thu, 19 Jan 2017 10:38:37 +0100 [thread overview]
Message-ID: <11675f60-3f56-d3a7-e8f8-1544c7a8567d@users.sourceforge.net> (raw)
In-Reply-To: <20170119000748.GB12052@parts.user-mode-linux.org>
>> +++ b/arch/um/drivers/port_kern.c
>> @@ -87,11 +87,8 @@ static int port_accept(struct port_list *port)
>> }
>>
>> conn = kmalloc(sizeof(*conn), GFP_ATOMIC);
>> - if (conn == NULL) {
>> - printk(KERN_ERR "port_accept : failed to allocate "
>> - "connection\n");
>> + if (!conn)
>> goto out_close;
>> - }
>> *conn = ((struct connection)
>> { .list = LIST_HEAD_INIT(conn->list),
>> .fd = fd,
>
> I don't see how this eliminates a possible error.
The suggested change affects three coding style issues at this place.
* Repetition of an out-of-memory message
See also:
http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
* Unwanted splitting of a message string
* Usage of a specific preprocessor symbol
> !x is something you use with something that is conceptually a Boolean.
Pointers can be also treated in this way, can't they?
Regards,
Markus
next prev parent reply other threads:[~2017-01-19 9:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-18 21:55 [PATCH 0/5] UM: Fine-tuning for some function implementations SF Markus Elfring
2017-01-18 21:56 ` [PATCH 1/5] um: port: Move an assignment for the variable "fd" in port_wait() SF Markus Elfring
2017-01-19 0:03 ` Jeff Dike
2017-01-18 21:57 ` [PATCH 2/5] um: port: Delete three error messages for a failed memory allocation SF Markus Elfring
2017-01-19 0:07 ` Jeff Dike
2017-01-19 9:38 ` SF Markus Elfring [this message]
2017-01-18 21:58 ` [PATCH 3/5] um: port: Improve size determinations in port_data() SF Markus Elfring
2017-01-18 21:59 ` [PATCH 4/5] um: ubd: Move two assignments for the variable "err" in ubd_remove() SF Markus Elfring
2017-01-18 22:00 ` [PATCH 5/5] um: ubd: Improve size determinations in do_ubd_request() SF Markus Elfring
2017-01-19 7:56 ` [PATCH 0/5] UM: Fine-tuning for some function implementations Richard Weinberger
2017-01-19 17:13 ` SF Markus Elfring
2017-01-19 18:44 ` Anton Ivanov
2017-01-20 5:11 ` [PATCH 0/5] " Jeff Dike
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=11675f60-3f56-d3a7-e8f8-1544c7a8567d@users.sourceforge.net \
--to=elfring@users.sourceforge.net \
--cc=aivanov@kot-begemot.co.uk \
--cc=axboe@fb.com \
--cc=dan.j.williams@intel.com \
--cc=hare@suse.com \
--cc=jdike@addtoit.com \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=richard@nod.at \
--cc=user-mode-linux-devel@lists.sourceforge.net \
--cc=user-mode-linux-user@lists.sourceforge.net \
--cc=wsa@the-dreams.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).