RE: [PATCH] pinctrl:sunplus: Add check for kmalloc

[Wells Lu 呂芳騰 <wells.lu@xxxxxxxxxxx>]

> > Fix Smatch static checker warning:
> > potential null dereference 'configs'. (kmalloc returns null)
> 
> ...
> 
> >  			configs = kmalloc(sizeof(*configs), GFP_KERNEL);
> > +			if (!configs)
> 
> > +				return -ENOMEM;
> 
> "Fixing" by adding a memory leak is not probably a good approach.

Do you mean I need to free all memory which are allocated in this subroutine before
return -ENOMEM?


> ...
> 
> >  			configs = kmalloc(sizeof(*configs), GFP_KERNEL);
> > +			if (!configs)
> > +				return -ENOMEM;
> 
> Ditto.
> 
> ...
> 
> It might be that I'm mistaken. In this case please add an explanation why in the commit
> message.
> 
> --
> With Best Regards,
> Andy Shevchenko
> 


Best regards,
Wells Lu