diff options
Diffstat (limited to 'drivers/usb/host/xhci-mem.c')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index a44f2d4..af65322 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -180,8 +180,15 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, struct xhci_segment *next; next = xhci_segment_alloc(xhci, flags); - if (!next) + if (!next) { + prev = ring->first_seg; + while (prev) { + next = prev->next; + xhci_segment_free(xhci, prev); + prev = next; + } goto fail; + } xhci_link_segments(xhci, prev, next, link_trbs, isoc); prev = next; @@ -201,7 +208,7 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, return ring; fail: - xhci_ring_free(xhci, ring); + kfree(ring); return NULL; } @@ -1026,6 +1033,8 @@ static unsigned int xhci_microframes_to_exponent(struct usb_device *udev, static unsigned int xhci_parse_microframe_interval(struct usb_device *udev, struct usb_host_endpoint *ep) { + if (ep->desc.bInterval == 0) + return 0; return xhci_microframes_to_exponent(udev, ep, ep->desc.bInterval, 0, 15); } |