From: Sharon Dvir <sharon.dvir@intel.com>
Date: Mon, 25 Jul 2016 13:11:05 +0000 (+0300)
Subject: iwlwifi: mvm: check if vif is NULL before using it
X-Git-Tag: v4.8-rc8~24^2~7^2^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bdc98b13716eafc454457e068d6c8aaffaaa71e4;p=platform%2Fkernel%2Flinux-exynos.git

iwlwifi: mvm: check if vif is NULL before using it

wdev_to_ieee80211_vif() might return NULL.
Check that vif != NULL before dereferencing it.

Signed-off-by: Sharon Dvir <sharon.dvir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index b4fc86d..6a615bb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -467,6 +467,8 @@ struct iwl_mvm_vif {
 static inline struct iwl_mvm_vif *
 iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
 {
+	if (!vif)
+		return NULL;
 	return (void *)vif->drv_priv;
 }