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xhci: fix overflow in usb_xhci_post_load

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Found by Coverity.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2014-01-29 17:03:10 +01:00
parent bd93976a1a
commit f6969b9fef
1 changed files with 1 additions and 1 deletions
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2
hw/usb/hcd-xhci.c
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@ -3636,7 +3636,7 @@ static int usb_xhci_post_load(void *opaque, int version_id)
slot->uport = xhci_lookup_uport(xhci, slot_ctx); slot->uport = xhci_lookup_uport(xhci, slot_ctx);
assert(slot->uport && slot->uport->dev); assert(slot->uport && slot->uport->dev);
for (epid = 1; epid <= 32; epid++) { for (epid = 1; epid <= 31; epid++) {
pctx = slot->ctx + 32 * epid; pctx = slot->ctx + 32 * epid;
xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx)); xhci_dma_read_u32s(xhci, pctx, ep_ctx, sizeof(ep_ctx));
state = ep_ctx[0] & EP_STATE_MASK; state = ep_ctx[0] & EP_STATE_MASK;