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List: openbsd-tech
Subject: sparc64: vnet: add size to free(9) call
From: Klemens Nanni <kn () openbsd ! org>
Date: 2020-06-30 23:15:06
Message-ID: 20200630231506.x25pnj3xsx4frchu () eru
[Download RAW message or body]
Without any later realloactions, size is taken from vnet_dring_alloc():
struct vnet_dring *vd;
...
vd = malloc(sizeof(struct vnet_dring), M_DEVBUF, M_NOWAIT);
Tested on T4-2 guest domains:
vnet0 at cbus0 chan 0x6: ivec 0xc, 0xd, address 00:14:4f:f9:3f:34
vnet1 at cbus0 chan 0x7: ivec 0xe, 0xf, address 00:14:4f:fb:05:2d
Feedback? OK?
diff --git a/sys/arch/sparc64/dev/vnet.c b/sys/arch/sparc64/dev/vnet.c
index 147caf1f2..97883df76 100644
--- a/sys/arch/sparc64/dev/vnet.c
+++ b/sys/arch/sparc64/dev/vnet.c
@@ -1535,5 +1535,5 @@ vnet_dring_free(bus_dma_tag_t t, struct vnet_dring *vd)
bus_dmamem_unmap(t, (caddr_t)vd->vd_desc, size);
bus_dmamem_free(t, &vd->vd_seg, 1);
bus_dmamap_destroy(t, vd->vd_map);
- free(vd, M_DEVBUF, 0);
+ free(vd, M_DEVBUF, sizeof(*vd));
}
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