xhci: Remove sparse warning about cmd_status.
authorSarah Sharp <sarah.a.sharp@linux.intel.com>
Thu, 28 Apr 2011 19:23:23 +0000 (12:23 -0700)
committerSarah Sharp <sarah.a.sharp@linux.intel.com>
Mon, 2 May 2011 23:42:54 +0000 (16:42 -0700)
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>
drivers/usb/host/xhci.c

index 5c0ae90df31ec83feef099f3686dab90559fc8fe..6864759c8d1a27aba81c9f6ef1b732dca2a1adba 100644 (file)
@@ -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];