diff options
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 94a8b28d602e..e4513ab015b4 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -112,18 +112,20 @@ void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring) struct xhci_segment *seg; struct xhci_segment *first_seg; - if (!ring || !ring->first_seg) + if (!ring) return; - first_seg = ring->first_seg; - seg = first_seg->next; - xhci_dbg(xhci, "Freeing ring at %p\n", ring); - while (seg != first_seg) { - struct xhci_segment *next = seg->next; - xhci_segment_free(xhci, seg); - seg = next; + if (ring->first_seg) { + first_seg = ring->first_seg; + seg = first_seg->next; + xhci_dbg(xhci, "Freeing ring at %p\n", ring); + while (seg != first_seg) { + struct xhci_segment *next = seg->next; + xhci_segment_free(xhci, seg); + seg = next; + } + xhci_segment_free(xhci, first_seg); + ring->first_seg = NULL; } - xhci_segment_free(xhci, first_seg); - ring->first_seg = NULL; kfree(ring); } |