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xhci: Remove sparse warning about cmd_status.

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Sparse complains about the arguments to xhci_evaluate_context_result() and
xhci_configure_endpoint_result():

  CHECK   drivers/usb/host/xhci.c
drivers/usb/host/xhci.c:1647:53: warning: incorrect type in argument 3 (different signedness)
drivers/usb/host/xhci.c:1647:53:    expected int *cmd_status
drivers/usb/host/xhci.c:1647:53:    got unsigned int [usertype] *[assigned] cmd_status
drivers/usb/host/xhci.c:1648:50: warning: incorrect type in argument 3 (different signedness)
drivers/usb/host/xhci.c:1648:50:    expected int *cmd_status
drivers/usb/host/xhci.c:1648:50:    got unsigned int [usertype] *[assigned] cmd_status

The command status is taken from the command completion event TRB, and
will always be a positive number.  Change the signature of
xhci_evaluate_context_result() and xhci_configure_endpoint_result() to
take a u32 for cmd_status.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Sarah Sharp 2011-04-28 12:23:23 -07:00
parent 5e467f6eba
commit 00161f7d04
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/xhci.c
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@ -1502,7 +1502,7 @@ static void xhci_zero_in_ctx(struct xhci_hcd *xhci, struct xhci_virt_device *vir
}
static int xhci_configure_endpoint_result(struct xhci_hcd *xhci,
struct usb_device *udev, int *cmd_status)
struct usb_device *udev, u32 *cmd_status)
{
int ret;
@ -1540,7 +1540,7 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci,
}
static int xhci_evaluate_context_result(struct xhci_hcd *xhci,
struct usb_device *udev, int *cmd_status)
struct usb_device *udev, u32 *cmd_status)
{
int ret;
struct xhci_virt_device *virt_dev = xhci->devs[udev->slot_id];