[Resend PATCH] intel-iommu Fix NULL pointer dereference in snd_soc_sst_haswell_pcm registration

Hi, This oops [1.616381] sst-acpi INT3438:00: DesignWare DMA Controller, 8 channels [1.616505] BUG: unable to handle kernel NULL pointer dereference at 07ab [1.616512] IP: [] device_to_iommu+0x11a/0x1a0 [1.616515] PGD 0 [1.616518] Oops: [#1] SMP [1.6165

PATCH; intel-iommu Fix NULL pointer dereference in snd_soc_sst_haswell_pcm registration

Hi, This oops [1.616381] sst-acpi INT3438:00: DesignWare DMA Controller, 8 channels [1.616505] BUG: unable to handle kernel NULL pointer dereference at 07ab [1.616512] IP: [] device_to_iommu+0x11a/0x1a0 [1.616515] PGD 0 [1.616518] Oops: [#1] SMP [1.616563