[PATCH] iommu/dart: Fix return code in apple_dart_domain_alloc_paging()
Dan Carpenter
dan.carpenter at linaro.org
Mon Oct 30 05:00:56 PDT 2023
On Mon, Oct 30, 2023 at 08:56:50AM -0300, Jason Gunthorpe wrote:
> On Mon, Oct 30, 2023 at 12:03:12PM +0300, Dan Carpenter wrote:
> > The apple_dart_domain_alloc_paging() function is supposed to return NULL
> > on error. Returning an error pointer will lead to an Oops in
> > __iommu_domain_alloc().
> >
> > Fixes: 482feb5c6492 ("iommu/dart: Call apple_dart_finalize_domain() as part of alloc_paging()")
> > Signed-off-by: Dan Carpenter <dan.carpenter at linaro.org>
> > ---
> > drivers/iommu/apple-dart.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Reviewed-by: Jason Gunthorpe <jgg at nvidia.com>
>
> Really need to fix this so the function does return ERR_PTR..
It's called as a function pointer. Changing that will create a
backporting hazard unless we rename the pointer or something.
regards,
dan carpenter
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