From c678fb2a915b71f8faa78d9ab6d409b8ff3276cc Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Wed, 6 Mar 2013 16:44:26 -0800 Subject: [PATCH] mwifiex: fix potential null dereference 'mef_entry' drivers/net/wireless/mwifiex/cfg80211.c:2357 mwifiex_cfg80211_suspend() error: potential null dereference 'mef_entry' (kzalloc returns null) Reported-by: kbuild test robot Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index df30107..c9bc5f5 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -2350,9 +2350,12 @@ static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, return 0; } + mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL); + if (!mef_entry) + return -ENOMEM; + memset(&mef_cfg, 0, sizeof(mef_cfg)); mef_cfg.num_entries = 1; - mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL); mef_cfg.mef_entry = mef_entry; mef_entry->mode = MEF_MODE_HOST_SLEEP; mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; -- 2.7.4