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| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2014-05-08 18:26:01 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-20 03:03:25 +0200 |
| commit | c9aa1a2de4cbf7d0db6012fbf86b6ee0c3719470 (patch) | |
| tree | 418f09500cbbe216460c77689ea6ac7b18e37714 /drivers/usb/host/xhci-mem.c | |
| parent | xhci: Use command structures when queuing commands on the command ring (diff) | |
| download | linux-c9aa1a2de4cbf7d0db6012fbf86b6ee0c3719470.tar.xz linux-c9aa1a2de4cbf7d0db6012fbf86b6ee0c3719470.zip | |
xhci: Add a global command queue
Create a list to store command structures, add a structure to it every time
a command is submitted, and remove it from the list once we get a
command completion event matching the command.
Callers that wait for completion will free their command structures themselves.
The other command structures are freed in the command completion event handler.
Also add a check that prevents queuing commands if host is dying
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-mem.c')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index c089668308ad..b070a17bf53f 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1821,6 +1821,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) list_del(&cur_cd->cancel_cmd_list); kfree(cur_cd); } + xhci_cleanup_command_queue(xhci); for (i = 1; i < MAX_HC_SLOTS; ++i) xhci_free_virt_device(xhci, i); @@ -2324,6 +2325,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) int i; INIT_LIST_HEAD(&xhci->cancel_cmd_list); + INIT_LIST_HEAD(&xhci->cmd_list); page_size = readl(&xhci->op_regs->page_size); xhci_dbg_trace(xhci, trace_xhci_dbg_init, |