tipc: Fix log buffer memory leak if initialization fails

Moves log buffer cleanup into tipc_core_stop() so that memory allocated
for the log buffer is freed if tipc_core_start() is unsuccessful.

Signed-off-by: Anders Kaseorg <andersk@ksplice.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/tipc/core.c b/net/tipc/core.c
index 696468117985..466b861dab91 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -169,6 +169,7 @@ void tipc_core_stop(void)
         tipc_nametbl_stop();
         tipc_ref_table_stop();
         tipc_socket_stop();
+        tipc_log_resize(0);
 }
 
 /**
@@ -203,7 +204,9 @@ static int __init tipc_init(void)
 {
         int res;
 
-        tipc_log_resize(CONFIG_TIPC_LOG);
+        if (tipc_log_resize(CONFIG_TIPC_LOG) != 0)
+                warn("Unable to create log buffer\n");
+
         info("Activated (version " TIPC_MOD_VER
              " compiled " __DATE__ " " __TIME__ ")\n");
 
@@ -230,7 +233,6 @@ static void __exit tipc_exit(void)
         tipc_core_stop_net();
         tipc_core_stop();
         info("Deactivated\n");
-        tipc_log_resize(0);
 }
 
 module_init(tipc_init);