xnu-792.12.6.tar.gz

[apple/xnu.git] / bsd / netat / adsp_CLListen.c

diff --git a/bsd/netat/adsp_CLListen.c b/bsd/netat/adsp_CLListen.c
index be7cf9f3d79fb860195ceaba442a72a6a582250b..faff65f23bcdfd4954dcd2dad15ac754d113a351 100644 (file)
--- a/bsd/netat/adsp_CLListen.c
+++ b/bsd/netat/adsp_CLListen.c
@@ -1,23 +1,31 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * This file contains Original Code and/or Modifications of Original Code 
+ * as defined in and that are subject to the Apple Public Source License 
+ * Version 2.0 (the 'License'). You may not use this file except in 
+ * compliance with the License.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * Please obtain a copy of the License at 
+ * http://www.opensource.apple.com/apsl/ and read it before using this 
+ * file.
+ *
+ * The Original Code and all software distributed under the License are 
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 /* dspCLListen.c 
  * 
@@ -69,6 +77,7 @@ int adspCLListen(sp, pb)      /* (DSPPBPtr pb) */
 {
     register struct adspcmd *clpb;
     gbuf_t *mp;
+    int s;
 
     if (sp == 0) {
        pb->ioResult = errRefNum;
@@ -86,8 +95,12 @@ int adspCLListen(sp, pb)     /* (DSPPBPtr pb) */
            clpb = (struct adspcmd *)gbuf_rptr(mp);
            clpb->ioc = 0;
            clpb->mp = mp;
-           if (qAddToEnd(&sp->opb, clpb))      /* Add to list of listeners */
-                       return EFAULT; /* bogus, but discriminate from other errors */
+           ATDISABLE(s, sp->lock);
+           if (qAddToEnd(&sp->opb, clpb)){     /* Add to list of listeners */
+            ATENABLE(s, sp->lock);
+               return EFAULT; /* bogus, but discriminate from other errors */
+           }
+           ATENABLE(s, sp->lock);
     } else {
            pb->ioResult = errDSPQueueSize;
            return ENOBUFS;