Re: [PATCH v6] ARM: omap: edma: add suspend suspend/resume hooks

[Sekhar Nori <nsekhar@ti.com>]

On Wednesday 27 November 2013 07:17 PM, Daniel Mack wrote:
> Hi Sekhar,
> 
> On 11/27/2013 02:35 PM, Sekhar Nori wrote:
>> On Monday 18 November 2013 03:49 AM, Daniel Mack wrote:
> 
>>> +static int edma_pm_suspend(struct device *dev)
>>> +{
>>> +	int j, r;
>>> +
>>> +	r = pm_runtime_get_sync(dev);
>>> +	if (IS_ERR_VALUE(r)) {
>>
>> So IS_ERR_VALUE() is only for functions which may return a negative
>> number outside of MAX_ERRNO as a success indication.
>> pm_runtime_get_sync() does not appear to be one of them so just use"
>>
>> if (r < 0) { .. }
> 
> That's true. Thanks for catching this, I'll fix it. However, grepping
> through the tree, there are quite a lot places where the same mistake is
> made.

Yes, this is a common fallacy. Russell cleaned up a bunch of these a
while back.

> 
>>> +		/* Map the channel to param entry if channel mapping logic
>>> +		 * exist
>>> +		 */
>>
>> Please follow the multi-line commenting style.
> 
> Can do. However, these lines in fact follow the style that is used
> throughout the entire file ;)

:) I did not compare the rest of the file, but hey the bar keep rising
all the time.

> 
>> There are some checkpatch checks that result from lines like this.
>> Please fix these as well.
>>
>> CHECK: Alignment should match open parenthesis
>> #179: FILE: arch/arm/common/edma.c:1841:
>> +			map_queue_tc(j, queue_tc_mapping[i][0],
>> +					queue_tc_mapping[i][1]);
> 
> If you say so, even though I disagree with checkpatch.pl here. The above
> is actually more readable, right? :)

In this particular case, I agree so I am okay if you keep it as is. The
rest of the two reports are valid though.

Thanks,
Sekhar