From 5dc67c9525fb6894c51ef40147055ce1bef7bf47 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Wed, 23 Jul 2008 21:29:04 -0700
Subject: [PATCH] --- yaml --- r: 105393 b: refs/heads/master c:
 4c432a8f0134504814aa8dcce6cc57c89d175604 h: refs/heads/master i:   105391:
 ab63d849bd2c4b7ad80076c55245a92b2181af55 v: v3

---
 [refs]                      | 2 +-
 trunk/scripts/checkpatch.pl | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 78617318685b..6e7a361efeca 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f5fe35dd95549b1b419cdeb2ec3fe61fda94fa93
+refs/heads/master: 4c432a8f0134504814aa8dcce6cc57c89d175604
diff --git a/trunk/scripts/checkpatch.pl b/trunk/scripts/checkpatch.pl
index 13d7a330b5dd..a4e8087a0cae 100755
--- a/trunk/scripts/checkpatch.pl
+++ b/trunk/scripts/checkpatch.pl
@@ -2078,6 +2078,13 @@ 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 probably not required\n" . $hereprev);
+			}
+		}
 
 # warn about #ifdefs in C files
 #		if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {