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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-06-03 14:17:19 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-07-04 17:42:30 +0200 |
| commit | f487b677c2dc15786dbe7c61326cc49e7c64daea (patch) | |
| tree | fedfbfc9a8476c8d76b8723a22e6dc0e4430bda3 /dma-helpers.c | |
| parent | cac3c384bb986f06a308e551641284586924813c (diff) | |
| download | qemu-f487b677c2dc15786dbe7c61326cc49e7c64daea.zip qemu-f487b677c2dc15786dbe7c61326cc49e7c64daea.tar.gz qemu-f487b677c2dc15786dbe7c61326cc49e7c64daea.tar.bz2 | |
dma: keep a device alive while it has SGLists
Reviewed-by: Anthony Liguori <aliguori@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'dma-helpers.c')
| -rw-r--r-- | dma-helpers.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/dma-helpers.c b/dma-helpers.c index 5afba47..499550f 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)); } |