Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (120 commits)
  usb: don't update devnum for wusb devices
  wusb: make ep0_reinit available for modules
  wusb: devices dont use a set address
  wusb: teach choose_address() about wireless devices
  wusb: add link wusb-usb device
  wusb: add authenticathed bit to usb_dev
  USB: remove unnecessary type casting of urb->context
  usb serial: more fixes and groundwork for tty changes
  USB: replace remaining __FUNCTION__ occurrences
  USB: usbfs: export the URB_NO_INTERRUPT flag to userspace
  USB: fix compile problems in ehci-hcd
  USB: ehci: qh_completions cleanup and bugfix
  USB: cdc-acm: signedness fix
  USB: add documentation about callbacks
  USB: don't explicitly reenable root-hub status interrupts
  USB: OHCI: turn off RD when remote wakeup is disabled
  USB: HCDs use the do_remote_wakeup flag
  USB: g_file_storage: ignore bulk-out data after invalid CBW
  USB: serial: remove endpoints setting checks from core and header
  USB: serial: remove unneeded number endpoints settings
  ...

1 files changed, 7 insertions, 0 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 58a94947d65..64ec4b8a51b 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1889,6 +1889,13 @@ sub process {
                                 WARN("kfree(NULL) is safe this check is probabally not required\n" . $hereprev);
                         }
                 }
+# check for needless usb_free_urb() checks
+                if ($prevline =~ /\bif\s*\(([^\)]*)\)/) {
+                        my $expr = $1;
+                        if ($line =~ /\busb_free_urb\(\Q$expr\E\);/) {
+                                WARN("usb_free_urb(NULL) is safe this check is probabally not required\n" . $hereprev);
+                        }
+                }
 
 # warn about #ifdefs in C files
 #               if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {