Author: kevlo
Date: Tue Jan  8 04:43:20 2013
New Revision: 245149
URL: http://svnweb.freebsd.org/changeset/base/245149

Log:
  MFC r236899:
  
  Fix unloading of libiconv module.
  
  Previously it would either loop infinitely or exit with error leaking a lock.

Modified:
  stable/9/sys/libkern/iconv.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/libkern/iconv.c
==============================================================================
--- stable/9/sys/libkern/iconv.c        Tue Jan  8 03:27:37 2013        
(r245148)
+++ stable/9/sys/libkern/iconv.c        Tue Jan  8 04:43:20 2013        
(r245149)
@@ -84,9 +84,11 @@ iconv_mod_unload(void)
        struct iconv_cspair *csp;
 
        sx_xlock(&iconv_lock);
-       while ((csp = TAILQ_FIRST(&iconv_cslist)) != NULL) {
-               if (csp->cp_refcount)
+       TAILQ_FOREACH(csp, &iconv_cslist, cp_link) {
+               if (csp->cp_refcount) {
+                       sx_xunlock(&iconv_lock);
                        return EBUSY;
+               }
        }
 
        while ((csp = TAILQ_FIRST(&iconv_cslist)) != NULL)
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