Re: [PATCH] iommu: check if group is NULL before remove device

[Joerg Roedel]

On Thu, Jul 15, 2021 at 09:11:50AM +0200, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
> 
> if probe is failing, iommu_group may be not initialized,

Sentences start with capital letters.

IOMMU patch subjects too, after the 'iommu:' prefix.

> so freeing it will result in NULL pointer access

Please describe in more detail how this NULL-ptr dereference is
triggered.

Regards,

	Joerg