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net: rtlwifi: properly check for alloc_workqueue() failure

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commit 30b0e0ee9d02b97b68705c46b41444786effc40c upstream.

If alloc_workqueue() fails, properly catch this and propagate the error
to the calling functions, so that the devuce initialization will
properly error out.

Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan Brattlof <hello@bryanbrattlof.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2021-05-03 13:56:40 +02:00
parent f9f59f4ca2
commit e81f94a71b
1 changed files with 10 additions and 5 deletions
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15
drivers/net/wireless/realtek/rtlwifi/base.c
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@ -440,9 +440,14 @@ static void rtl_watchdog_wq_callback(struct work_struct *work);
static void rtl_fwevt_wq_callback(struct work_struct *work);
static void rtl_c2hcmd_wq_callback(struct work_struct *work);
static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
static int _rtl_init_deferred_work(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct workqueue_struct *wq;
wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
if (!wq)
return -ENOMEM;
/* <1> timer */
timer_setup(&rtlpriv->works.watchdog_timer,
@ -451,7 +456,8 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
rtl_easy_concurrent_retrytimer_callback, 0);
/* <2> work queue */
rtlpriv->works.hw = hw;
rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
rtlpriv->works.rtl_wq = wq;
INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
rtl_watchdog_wq_callback);
INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
@ -461,6 +467,7 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
rtl_swlps_rfon_wq_callback);
INIT_DELAYED_WORK(&rtlpriv->works.fwevt_wq, rtl_fwevt_wq_callback);
INIT_DELAYED_WORK(&rtlpriv->works.c2hcmd_wq, rtl_c2hcmd_wq_callback);
return 0;
}
void rtl_deinit_deferred_work(struct ieee80211_hw *hw, bool ips_wq)
@ -560,9 +567,7 @@ int rtl_init_core(struct ieee80211_hw *hw)
rtlmac->link_state = MAC80211_NOLINK;
/* <6> init deferred work */
_rtl_init_deferred_work(hw);
return 0;
return _rtl_init_deferred_work(hw);
}
EXPORT_SYMBOL_GPL(rtl_init_core);