diff options
| author | Kangjie Lu <kjlu@umn.edu> | 2019-03-12 02:56:33 -0500 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-04 13:24:53 +0300 |
| commit | 765976285a8c8db3f0eb7f033829a899d0c2786e (patch) | |
| tree | 92c091b8f99736cea26ea93864d7406b8fa8b503 /drivers/net/wireless/realtek/rtlwifi/base.c | |
| parent | 2cd2b42439ea7d1231b6b3f0eb0fe606f2ba5160 (diff) | |
rtlwifi: fix a potential NULL pointer dereference
In case alloc_workqueue fails, the fix reports the error and
returns to avoid NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/base.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/base.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c index 217d2a7a43c7..ac746c322554 100644 --- a/drivers/net/wireless/realtek/rtlwifi/base.c +++ b/drivers/net/wireless/realtek/rtlwifi/base.c @@ -448,6 +448,11 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw) /* <2> work queue */ rtlpriv->works.hw = hw; rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name); + if (unlikely(!rtlpriv->works.rtl_wq)) { + pr_err("Failed to allocate work queue\n"); + return; + } + INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq, (void *)rtl_watchdog_wq_callback); INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq, |