From f487b677c2dc15786dbe7c61326cc49e7c64daea Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 3 Jun 2013 14:17:19 +0200 Subject: dma: keep a device alive while it has SGLists Reviewed-by: Anthony Liguori Signed-off-by: Paolo Bonzini --- dma-helpers.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'dma-helpers.c') diff --git a/dma-helpers.c b/dma-helpers.c index 5afba47478..499550fc23 100644 --- a/dma-helpers.c +++ b/dma-helpers.c @@ -34,13 +34,16 @@ int dma_memory_set(AddressSpace *as, dma_addr_t addr, uint8_t c, dma_addr_t len) return error; } -void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint, AddressSpace *as) +void qemu_sglist_init(QEMUSGList *qsg, DeviceState *dev, int alloc_hint, + AddressSpace *as) { qsg->sg = g_malloc(alloc_hint * sizeof(ScatterGatherEntry)); qsg->nsg = 0; qsg->nalloc = alloc_hint; qsg->size = 0; qsg->as = as; + qsg->dev = dev; + object_ref(OBJECT(dev)); } void qemu_sglist_add(QEMUSGList *qsg, dma_addr_t base, dma_addr_t len) @@ -57,6 +60,7 @@ void qemu_sglist_add(QEMUSGList *qsg, dma_addr_t base, dma_addr_t len) void qemu_sglist_destroy(QEMUSGList *qsg) { + object_unref(OBJECT(qsg->dev)); g_free(qsg->sg); memset(qsg, 0, sizeof(*qsg)); } -- cgit 1.4.1