On 03/20/2013 11:59 AM, Tomi Valkeinen wrote:
> On 2013-03-20 17:44, Jon Hunter wrote:
>>
>> On 03/20/2013 06:56 AM, Tomi Valkeinen wrote:
>>> On 2013-03-19 10:03, Alexandru Gheorghiu wrote:
>>>> Use PTR_RET function instead of IS_ERR and PTR_ERR.
>>>> Patch found using coccinelle.
>>>>
>>>> Signed-off-by: Alexandru Gheorghiu <gheorghiuan...@gmail.com>
>>>> ---
>>>>  drivers/video/omap2/dss/core.c |    5 +----
>>>>  1 file changed, 1 insertion(+), 4 deletions(-)
>>>>
>>>> diff --git a/drivers/video/omap2/dss/core.c 
>>>> b/drivers/video/omap2/dss/core.c
>>>> index f8779d4..60cc6fe 100644
>>>> --- a/drivers/video/omap2/dss/core.c
>>>> +++ b/drivers/video/omap2/dss/core.c
>>>> @@ -181,10 +181,7 @@ int dss_debugfs_create_file(const char *name, void 
>>>> (*write)(struct seq_file *))
>>>>    d = debugfs_create_file(name, S_IRUGO, dss_debugfs_dir,
>>>>                    write, &dss_debug_fops);
>>>>  
>>>> -  if (IS_ERR(d))
>>>> -          return PTR_ERR(d);
>>>> -
>>>> -  return 0;
>>>> +  return PTR_RET(d);
>>>>  }
>>>>  #else /* CONFIG_OMAP2_DSS_DEBUGFS */
>>>>  static inline int dss_initialize_debugfs(void)
>>>>
>>>
>>> Thanks. I'll apply to omapdss tree.
>>
>> Is this correct? If debugfs_create_file() returns a valid pointer, then
>> now dss_debugfs_create_file() will return a non-zero value on success. I
>> don't think this is what you want. A similar case came up recently here [1].
> 
> Hmm. I don't follow. And I don't understand the post where you referred.
> 
> PTR_RET is defined as:
> 
> if (IS_ERR(ptr))
>         return PTR_ERR(ptr);
> else
>         return 0;
> 
> How's that different from the original code?

Oops sorry, I missed that you were returning PTR_RET() and not
PTR_ERR(). Yes that looks fine. Sorry for the noise!

Jon
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