Re: [PATCH] drm/radeon: cleanup coding style a bit

[Joe Perches]

On Sun, 2020-04-26 at 15:18 +0200, Christian König wrote:
> Am 26.04.20 um 15:12 schrieb Bernard Zhao:
> > Maybe no need to check ws before kmalloc, kmalloc will check
> > itself, kmalloc`s logic is if ptr is NULL, kmalloc will just
> > return
> > 
> > Signed-off-by: Bernard Zhao <bernard@xxxxxxxx>
> 
> Reviewed-by: Christian König <christian.koenig@xxxxxxx>
> 
> I'm wondering why the automated scripts haven't found that one before.

because this pattern is

	if (foo)
		kfree(bar);

and the pattern looked for is:

	if (foo)
		kfree(foo);

> > diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
[]
> > @@ -1211,8 +1211,7 @@ static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32
> >   	SDEBUG("<<\n");
> >   
> >   free:
> > -	if (ws)
> > -		kfree(ectx.ws);
> > +	kfree(ectx.ws);
> >   	return ret;
> >   }

I'm wondering if this removal is correct as the function
is named _locked and it may be recursive or called under
some external lock.