Gautam Dawar 5a52215009 vhost-vdpa: free iommu domain after last use during cleanup ... 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>		2023-03-13 02:29:11 -04:00
..
iotlb.c
Kconfig
Makefile
net.c
scsi.c
test.c
test.h
vdpa.c	vhost-vdpa: free iommu domain after last use during cleanup	2023-03-13 02:29:11 -04:00
vhost.c
vhost.h
vringh.c
vsock.c	virtio,vhost,vdpa: features, fixes	2023-02-25 11:48:02 -08:00