diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2013-11-07 08:19:45 +0100 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2014-03-04 15:38:13 -0800 |
| commit | 127329d76b8534fb58c207db1f172d8468b828ff (patch) | |
| tree | 407111d59016596dd5729630c9386f67fa49906d /drivers/usb/host | |
| parent | 82aa0387d52dd0db2173b844ad52d114807c189b (diff) | |
xhci: xhci_mem_cleanup: make sure cmd_ring_reserved_trbs really is 0
cmd_ring_reserved_trbs gets decremented by xhci_free_stream_info(), so set it
to 0 after freeing all rings, otherwise it wraps around to a very large value
when rings with streams are free-ed.
Before this patch the wrap-around could be triggered when xhci_resume
calls xhci_mem_cleanup if the controller resume fails.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index edfb31ad5949..60fc6720007f 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1812,7 +1812,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) if (xhci->lpm_command) xhci_free_command(xhci, xhci->lpm_command); - xhci->cmd_ring_reserved_trbs = 0; if (xhci->cmd_ring) xhci_ring_free(xhci, xhci->cmd_ring); xhci->cmd_ring = NULL; @@ -1877,6 +1876,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) } no_bw: + xhci->cmd_ring_reserved_trbs = 0; xhci->num_usb2_ports = 0; xhci->num_usb3_ports = 0; xhci->num_active_eps = 0; |