Gautam Dawar 374bcab6c1 vhost-vdpa: free iommu domain after last use during cleanup ... [ Upstream commit 5a52215009 ] Currently vhost_vdpa_cleanup() unmaps the DMA mappings by calling `iommu_unmap(v->domain, map->start, map->size);` from vhost_vdpa_general_unmap() when the parent vDPA driver doesn't provide DMA config operations. However, the IOMMU domain referred to by `v->domain` is freed in vhost_vdpa_free_domain() before vhost_vdpa_cleanup() in vhost_vdpa_release() which results in NULL pointer de-reference. Accordingly, moving the call to vhost_vdpa_free_domain() in vhost_vdpa_cleanup() would makes sense. This will also help detaching the dma device in error handling of vhost_vdpa_alloc_domain(). This issue was observed on terminating QEMU with SIGQUIT. Fixes: 037d430556 ("vhost-vdpa: call vhost_vdpa_cleanup during the release") Signed-off-by: Gautam Dawar <gautam.dawar@amd.com> Message-Id: <20230301163203.29883-1-gautam.dawar@amd.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-03-22 13:33:44 +01:00
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Kconfig	…
Makefile	…
iotlb.c	…
net.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
scsi.c	vhost-scsi: unbreak any layout for response	2023-02-09 11:28:04 +01:00
test.c	…
test.h	…
vdpa.c	vhost-vdpa: free iommu domain after last use during cleanup	2023-03-22 13:33:44 +01:00
vhost.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
vhost.h	vhost/net: Clear the pending messages when the backend is removed	2023-02-09 11:28:03 +01:00
vringh.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
vsock.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00