5d5da114b3
Following command qemu-img create -f qcow2 sheepdog:test 20g will cause core dump because aio_context is NULL in sd_create. We should initialize it by qemu_get_aio_context() to avoid NULL dereference. Cc: qemu-devel@nongnu.org Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>