[PATCH] iwlwifi: mvm: fix a memory leak in iwl_mvm_mac_ctxt_beacon_changed

[Zhang Qilong]

In the error path of iwl_mvm_mac_ctxt_beacon_changed,
the beacon it not be freed, and use dev_kfree_skb to
free it.

Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c 
b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
index cbdebefb854a..6f5951aed8a7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.c
@@ -1044,8 +1044,10 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
                return -ENOMEM;
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-       if (mvm->beacon_inject_active)
+       if (mvm->beacon_inject_active) {
+               dev_kfree_skb(beacon);
                return -EBUSY;
+       }
 #endif
 
        ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon);
-- 
2.17.1