knfsd: cache unregistration needn't return error

There's really nothing much the caller can do if cache unregistration
fails.  And indeed, all any caller does in this case is print an error
and continue.  So just return void and move the printk's inside
cache_unregister.

Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

3 files changed, 9 insertions, 11 deletions

diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 73940df6c460..d329a12500aa 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1396,9 +1396,7 @@ gss_svc_init(void)
 void
 gss_svc_shutdown(void)
 {
-        if (cache_unregister(&rsc_cache))
-                printk(KERN_ERR "auth_rpcgss: failed to unregister rsc cache\n");
-        if (cache_unregister(&rsi_cache))
-                printk(KERN_ERR "auth_rpcgss: failed to unregister rsi cache\n");
+        cache_unregister(&rsc_cache);
+        cache_unregister(&rsi_cache);
         svc_auth_unregister(RPC_AUTH_GSS);
 }
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 3b11277d27b1..365586a999ea 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -343,7 +343,7 @@ void cache_register(struct cache_detail *cd)
         schedule_delayed_work(&cache_cleaner, 0);
 }
 
-int cache_unregister(struct cache_detail *cd)
+void cache_unregister(struct cache_detail *cd)
 {
         cache_purge(cd);
         spin_lock(&cache_list_lock);
@@ -351,7 +351,7 @@ int cache_unregister(struct cache_detail *cd)
         if (cd->entries || atomic_read(&cd->inuse)) {
                 write_unlock(&cd->hash_lock);
                 spin_unlock(&cache_list_lock);
-                return -EBUSY;
+                goto out;
         }
         if (current_detail == cd)
                 current_detail = NULL;
@@ -373,7 +373,9 @@ int cache_unregister(struct cache_detail *cd)
                 /* module must be being unloaded so its safe to kill the worker */
                 cancel_delayed_work_sync(&cache_cleaner);
         }
-        return 0;
+        return;
+out:
+        printk(KERN_ERR "nfsd: failed to unregister %s cache\n", cd->name);
 }
 
 /* clean cache tries to find something to clean
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 1a7e309d008b..ef7dc78e2c7b 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -98,10 +98,8 @@ cleanup_sunrpc(void)
         cleanup_socket_xprt();
         unregister_rpc_pipefs();
         rpc_destroy_mempool();
-        if (cache_unregister(&ip_map_cache))
-                printk(KERN_ERR "sunrpc: failed to unregister ip_map cache\n");
-        if (cache_unregister(&unix_gid_cache))
-              printk(KERN_ERR "sunrpc: failed to unregister unix_gid cache\n");
+        cache_unregister(&ip_map_cache);
+        cache_unregister(&unix_gid_cache);
 #ifdef RPC_DEBUG
         rpc_unregister_sysctl();
 #endif