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-rw-r--r--drivers/usb/host/xhci-mem.c22
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)
112 struct xhci_segment *seg; 112 struct xhci_segment *seg;
113 struct xhci_segment *first_seg; 113 struct xhci_segment *first_seg;
114 114
115 if (!ring || !ring->first_seg) 115 if (!ring)
116 return; 116 return;
117 first_seg = ring->first_seg; 117 if (ring->first_seg) {
118 seg = first_seg->next; 118 first_seg = ring->first_seg;
119 xhci_dbg(xhci, "Freeing ring at %p\n", ring); 119 seg = first_seg->next;
120 while (seg != first_seg) { 120 xhci_dbg(xhci, "Freeing ring at %p\n", ring);
121 struct xhci_segment *next = seg->next; 121 while (seg != first_seg) {
122 xhci_segment_free(xhci, seg); 122 struct xhci_segment *next = seg->next;
123 seg = next; 123 xhci_segment_free(xhci, seg);
124 seg = next;
125 }
126 xhci_segment_free(xhci, first_seg);
127 ring->first_seg = NULL;
124 } 128 }
125 xhci_segment_free(xhci, first_seg);
126 ring->first_seg = NULL;
127 kfree(ring); 129 kfree(ring);
128} 130}
129 131