mwifiex: move del_timer_sync(scan_delay_timer) call to fix memleak

Currently it is in mwifiex_adapter_cleanup() which doesn't get
called if driver initialization is failed causing memory leak.

scan_delay_timer is initialized in mwifiex_register(), so it
should be deleted in mwifiex_unregister(). Hence it has been
moved to appropriate place.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index fb86cec..f23520f 100644 (file)
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -378,18 +378,11 @@ static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter)
 static void
 mwifiex_adapter_cleanup(struct mwifiex_adapter *adapter)
 {
-       int i;
-
        if (!adapter) {
                pr_err("%s: adapter is NULL\n", __func__);
                return;
        }
 
-       for (i = 0; i < adapter->priv_num; i++) {
-               if (adapter->priv[i])
-                       del_timer_sync(&adapter->priv[i]->scan_delay_timer);
-       }
-
        mwifiex_cancel_all_pending_cmd(adapter);
 
        /* Free lock variables */

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index e15ab72..ef151c5 100644 (file)
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -197,6 +197,7 @@ static int mwifiex_unregister(struct mwifiex_adapter *adapter)
        for (i = 0; i < adapter->priv_num; i++) {
                if (adapter->priv[i]) {
                        mwifiex_free_curr_bcn(adapter->priv[i]);
+                       del_timer_sync(&adapter->priv[i]->scan_delay_timer);
                        kfree(adapter->priv[i]);
                }
        }