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Merge "usb: xhci: Avoid NULL pointer access of sec event ring"

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qctecmdr 2021-09-11 05:15:34 -07:00 • committed by Gerrit - the friendly Code Review server
commit 16c10b79ca
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/host/xhci-mem.c
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@ -1923,6 +1923,11 @@ static int sec_event_ring_cleanup(struct xhci_hcd *xhci, unsigned int intr_num)
return -EINVAL;
}
if (!xhci->sec_erst) {
xhci_err(xhci, "secondary ring is NULL or not initialized\n");
return -EINVAL;
}
size =
sizeof(struct xhci_erst_entry)*(xhci->sec_erst[intr_num].num_entries);
if (xhci->sec_erst[intr_num].entries) {