Re: [PATCH v3] drm/panthor: Fix couple of NULL vs IS_ERR() bugs

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On Tue, Apr 02, 2024 at 04:38:38PM +0200, Boris Brezillon wrote:
> On Tue,  2 Apr 2024 07:14:11 -0700
> Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx> wrote:
> 
> > Currently panthor_vm_get_heap_pool() returns both ERR_PTR() and
> > NULL(when create is false and if there is no poool attached to the
> 
>                                                ^ pool
> 
> > VM)
> > 	- Change the function to return error pointers, when pool is
> > 	  NULL return -ENOENT
> > 	- Also handle the callers to check for IS_ERR() on failure.
> > 
> > Fixes: 4bdca1150792 ("drm/panthor: Add the driver frontend block")
> 
> I would explain that the code was correct, but the documentation didn't
> match the function behavior, otherwise it feels a bit weird to have a
> Fixes tag here.

The code wasn't correct, it returned a mix of error pointers and NULL.
So it needs a Fixes tag.

regards,
dan carpenter




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