summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/rtlwifi
diff options
context:
space:
mode:
authorLarry Finger <Larry.Finger@lwfinger.net>2014-03-04 16:53:50 -0600
committerJohn W. Linville <linville@tuxdriver.com>2014-03-06 14:29:56 -0500
commita53268be0cb9763f11da4f6fe3fb924cbe3a7d4a (patch)
tree132fc28bd44538e7080a5977dc5d5257d9e6a69d /drivers/net/wireless/rtlwifi
parent1bae2ae3647393b8ce185135ef0854486ce5a4c2 (diff)
rtlwifi: rtl8192cu: Fix too long disable of IRQs
In commit f78bccd79ba3cd9d9664981b501d57bdb81ab8a4 entitled "rtlwifi: rtl8192ce: Fix too long disable of IRQs", Olivier Langlois <olivier@trillion01.com> fixed a problem caused by an extra long disabling of interrupts. This patch makes the same fix for rtl8192cu. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rtlwifi')
-rw-r--r--drivers/net/wireless/rtlwifi/rtl8192cu/hw.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
index db7df7f83a0..68b5c7e92cf 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
@@ -985,6 +985,17 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
int err = 0;
static bool iqk_initialized;
+ unsigned long flags;
+
+ /* As this function can take a very long time (up to 350 ms)
+ * and can be called with irqs disabled, reenable the irqs
+ * to let the other devices continue being serviced.
+ *
+ * It is safe doing so since our own interrupts will only be enabled
+ * in a subsequent step.
+ */
+ local_save_flags(flags);
+ local_irq_enable();
rtlhal->hw_type = HARDWARE_TYPE_RTL8192CU;
err = _rtl92cu_init_mac(hw);
@@ -997,7 +1008,7 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
"Failed to download FW. Init HW without FW now..\n");
err = 1;
- return err;
+ goto exit;
}
rtlhal->last_hmeboxnum = 0; /* h2c */
_rtl92cu_phy_param_tab_init(hw);
@@ -1034,6 +1045,8 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
_InitPABias(hw);
_update_mac_setting(hw);
rtl92c_dm_init(hw);
+exit:
+ local_irq_restore(flags);
return err;
}