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Re: [PATCH 3/9] staging: ks7010: Return directly after a failed kmalloc()

From SF Markus Elfring <elfring@users.sourceforge.net>
Newsgroups linux.kernel
Subject Re: [PATCH 3/9] staging: ks7010: Return directly after a failed kmalloc()
Date 2016-07-20 20:50 +0200
Message-ID <rX4Jc-52e-7@gated-at.bofh.it> (permalink)
References (6 earlier) <mSsDN-4wa-33@gated-at.bofh.it> <rVYFQ-430-11@gated-at.bofh.it> <rVYPv-46h-11@gated-at.bofh.it> <rVZsd-4jy-17@gated-at.bofh.it> <rX1UZ-3fU-17@gated-at.bofh.it>
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>>> @@ -713,10 +713,8 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
>>>  	unsigned char *data_buf;
>>>
>>>  	data_buf = kmalloc(sizeof(u32), GFP_KERNEL);
>>> -	if (!data_buf) {
>>> -		rc = 1;
>>> -		goto error_out;
>>> -	}
>>> +	if (!data_buf)
>>> +		return 1;
>>
>> One could rather wonder why the function has such strange error values...
> 
> Agreed. Markus, can you check if we can use -ENOMEM in those places.

I find that I do not know this software good enough at the moment
so that I could safely decide on the shown special error values.
I guess that further clarification might be needed for affected
implementation details.

Regards,
Markus

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[PATCH 0/9] staging: ks7010: Fine-tuning for a SDIO card driver SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:10 +0200
  [PATCH 2/9] staging: ks7010: Delete unnecessary assignments for  buffer variables SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:20 +0200
    Re: [PATCH 2/9] staging: ks7010: Delete unnecessary assignments for  buffer variables Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 17:50 +0200
  [PATCH 1/9] staging: ks7010: Delete unnecessary checks before the  function call "kfree" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:20 +0200
    Re: [PATCH 1/9] staging: ks7010: Delete unnecessary checks before  the function call "kfree" Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 17:50 +0200
  [PATCH 3/9] staging: ks7010: Return directly after a failed kmalloc() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:20 +0200
    Re: [PATCH 3/9] staging: ks7010: Return directly after a failed  kmalloc() Julia Lawall <julia.lawall@lip6.fr> - 2016-07-17 21:00 +0200
      Re: [PATCH 3/9] staging: ks7010: Return directly after a failed  kmalloc() Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 17:50 +0200
        Re: [PATCH 3/9] staging: ks7010: Return directly after a failed  kmalloc() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-20 20:50 +0200
          Re: [PATCH 3/9] staging: ks7010: Return directly after a failed  kmalloc() Wolfram Sang <wsa@the-dreams.de> - 2016-07-21 08:30 +0200
            Re: staging: ks7010: Return directly after a failed kmalloc() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-22 09:40 +0200
              Re: staging: ks7010: Return directly after a failed kmalloc() Wolfram Sang <wsa@the-dreams.de> - 2016-07-22 09:50 +0200
  [PATCH 7/9] staging: ks7010: Replace three printk() calls by pr_err() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:30 +0200
    Re: [PATCH 7/9] staging: ks7010: Replace three printk() calls by  pr_err() Joe Perches <joe@perches.com> - 2016-07-17 22:30 +0200
      Re: [PATCH 7/9] staging: ks7010: Replace three printk() calls by  pr_err() Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 18:00 +0200
  [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the variable  "retval" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:30 +0200
    Re: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the  variable "retval" Julia Lawall <julia.lawall@lip6.fr> - 2016-07-17 21:00 +0200
      Re: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the  variable "retval" Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 18:00 +0200
        Re: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the  variable "retval" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-20 20:50 +0200
          Re: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the  variable "retval" Wolfram Sang <wsa@the-dreams.de> - 2016-07-21 08:30 +0200
            Re: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the  variable "retval" Wolfram Sang <wsa@the-dreams.de> - 2016-07-21 09:30 +0200
            Re: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the  variable "retval" Julia Lawall <julia.lawall@lip6.fr> - 2016-07-21 09:30 +0200
              Re: staging: ks7010: Delete unnecessary uses of the variable "retval" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 14:50 +0200
                Re: staging: ks7010: Delete unnecessary uses of the variable  "retval" Julia Lawall <julia.lawall@lip6.fr> - 2016-07-21 15:00 +0200
                Re: staging: ks7010: Delete unnecessary uses of the variable "retval" Wolfram Sang <wsa@the-dreams.de> - 2016-07-21 18:40 +0200
            Re: staging: ks7010: Delete unnecessary uses of the variable "retval" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 15:40 +0200
              Re: staging: ks7010: Delete unnecessary uses of the variable "retval" Wolfram Sang <wsa@the-dreams.de> - 2016-07-21 18:40 +0200
                Re: staging: ks7010: Delete unnecessary uses of the variable "retval" SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 23:30 +0200
                Re: staging: ks7010: Delete unnecessary uses of the variable "retval" Wolfram Sang <wsa@the-dreams.de> - 2016-07-22 08:00 +0200
  [PATCH 8/9] staging: ks7010: Delete a variable in write_to_device() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:30 +0200
    Re: [PATCH 8/9] staging: ks7010: Delete a variable in  write_to_device() Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 18:00 +0200
  [PATCH 4/9] staging: ks7010: Rename jump labels SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:30 +0200
    Re: [PATCH 4/9] staging: ks7010: Rename jump labels Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 18:00 +0200
      Re: staging: ks7010: Rename jump labels SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-20 20:30 +0200
        Re: staging: ks7010: Rename jump labels Jean Delvare <jdelvare@suse.de> - 2016-07-20 23:20 +0200
          Re: staging: ks7010: Rename jump labels Wolfram Sang <wsa@the-dreams.de> - 2016-07-21 08:30 +0200
          Re: staging: ks7010: Rename jump labels "SF Markus Elfring" <elfring@users.sourceforge.net> - 2016-07-21 10:00 +0200
            Re: staging: ks7010: Rename jump labels Jean Delvare <jdelvare@suse.de> - 2016-07-25 14:40 +0200
          Re: staging: ks7010: Rename jump labels SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 17:40 +0200
            Re: staging: ks7010: Rename jump labels Jean Delvare <jdelvare@suse.de> - 2016-07-21 21:20 +0200
              Re: staging: ks7010: Rename jump labels SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 22:30 +0200
                Re: staging: ks7010: Rename jump labels Jean Delvare <jdelvare@suse.de> - 2016-07-25 14:40 +0200
                Re: staging: ks7010: Rename jump labels SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-25 18:20 +0200
                Re: staging: ks7010: Rename jump labels Jean Delvare <jdelvare@suse.de> - 2016-07-25 23:10 +0200
  [PATCH 6/9] staging: ks7010: Delete unnecessary braces SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:30 +0200
    Re: [PATCH 6/9] staging: ks7010: Delete unnecessary braces Julia Lawall <julia.lawall@lip6.fr> - 2016-07-17 21:00 +0200
      Re: [PATCH 6/9] staging: ks7010: Delete unnecessary braces Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 18:00 +0200
  [PATCH 9/9] staging: ks7010: Delete three unnecessary variable  initialisations SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-17 20:40 +0200
    Re: [PATCH 9/9] staging: ks7010: Delete three unnecessary variable  initialisations Julia Lawall <julia.lawall@lip6.fr> - 2016-07-17 21:00 +0200
      Re: [PATCH 9/9] staging: ks7010: Delete three unnecessary variable  initialisations Wolfram Sang <wsa@the-dreams.de> - 2016-07-20 18:00 +0200
      Re: [PATCH 9/9] staging: ks7010: Delete three unnecessary variable  initialisations SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 15:50 +0200
        Re: [PATCH 9/9] staging: ks7010: Delete three unnecessary variable  initialisations Julia Lawall <julia.lawall@lip6.fr> - 2016-07-21 16:00 +0200
          Re: staging: ks7010: Delete three unnecessary variable  initialisations SF Markus Elfring <elfring@users.sourceforge.net> - 2016-07-21 16:20 +0200

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