nfsd: fix "insecure" export option

A typo in 12045a6ee9908b "nfsd: let "insecure" flag vary by
pseudoflavor" reversed the sense of the "insecure" flag.

Reported-by: Michael Guntsche <mike@it-loops.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 1c12177..55c8e63 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -89,7 +89,7 @@
 	int flags = nfsexp_flags(rqstp, exp);
 
 	/* Check if the request originated from a secure port. */
-	if (!rqstp->rq_secure && (flags & NFSEXP_INSECURE_PORT)) {
+	if (!rqstp->rq_secure && !(flags & NFSEXP_INSECURE_PORT)) {
 		RPC_IFDEBUG(char buf[RPC_MAX_ADDRBUFLEN]);
 		dprintk(KERN_WARNING
 		       "nfsd: request from insecure port %s!\n",