[PATCH v9 03/27] clk: davinci: psc: allow for dev == NULL

David Lechner david at lechnology.com
Tue May 1 18:49:52 PDT 2018


On 05/01/2018 09:02 AM, Sekhar Nori wrote:
> On Friday 27 April 2018 05:47 AM, David Lechner wrote:
>> +static inline void *_devm_kzalloc(struct device *dev, size_t size, gfp_t flags)
>> +{
>> +	if (dev)
>> +		return devm_kzalloc(dev, size, flags);
>> +
>> +	return kzalloc(size, flags);
>> +}
> 
> I have the same question on the utility of this. A memory allocation
> error so early on is not going to result in a bootable system anyway.
> So, I wonder if its better to just BUG() in such cases. That will
> actually help faster debug than returning an error back. I know the push
> back on using BUG(), but clock drivers are special, and I think thats
> why its seems to be used quite a bit already.
> 

Same reply here as well. On DA850/DA830, you might not get a console,
but you will "boot" even if one of the PSC devices fails though.

WARN() is probably just as good as BUG() in this case too.





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