From: <Ajay.Kathat@microchip.com>
To: <linux-wireless@vger.kernel.org>
Cc: <Claudiu.Beznea@microchip.com>, <Ajay.Kathat@microchip.com>
Subject: [PATCH v2 09/11] wilc1000: add 'initialized' flag check before adding an element to TX queue
Date: Thu, 16 Sep 2021 16:49:21 +0000 [thread overview]
Message-ID: <20210916164902.74629-10-ajay.kathat@microchip.com> (raw)
In-Reply-To: <20210916164902.74629-1-ajay.kathat@microchip.com>
From: Ajay Singh <ajay.kathat@microchip.com>
Add 'initialized' variable check before adding net/mgmt packet to TX queue
as safety check before passing the commands to the firmware.
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
---
drivers/net/wireless/microchip/wilc1000/cfg80211.c | 4 ++++
drivers/net/wireless/microchip/wilc1000/wlan.c | 9 +++++++++
2 files changed, 13 insertions(+)
diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index 91a471f3b1c8..dc4bfe7be378 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -728,6 +728,7 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
{
struct wilc_vif *vif = netdev_priv(dev);
struct wilc_priv *priv = &vif->priv;
+ struct wilc *wilc = vif->wilc;
u32 i = 0;
u32 associatedsta = ~0;
u32 inactive_time = 0;
@@ -754,6 +755,9 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev,
} else if (vif->iftype == WILC_STATION_MODE) {
struct rf_info stats;
+ if (!wilc->initialized)
+ return -EBUSY;
+
wilc_get_statistics(vif, &stats);
sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL) |
diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c
index de5287cd8652..ea81ef120fd1 100644
--- a/drivers/net/wireless/microchip/wilc1000/wlan.c
+++ b/drivers/net/wireless/microchip/wilc1000/wlan.c
@@ -427,6 +427,11 @@ int wilc_wlan_txq_add_net_pkt(struct net_device *dev,
return 0;
}
+ if (!wilc->initialized) {
+ tx_complete_fn(tx_data, 0);
+ return 0;
+ }
+
tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
if (!tqe) {
@@ -476,6 +481,10 @@ int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer,
return 0;
}
+ if (!wilc->initialized) {
+ tx_complete_fn(priv, 0);
+ return 0;
+ }
tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
if (!tqe) {
--
2.25.1
next prev parent reply other threads:[~2021-09-16 16:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-16 16:49 [PATCH v2 00/11] wilc1000: add chip wakeup support and few fixes Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 01/11] wilc1000: move 'deinit_lock' lock init/destroy inside module probe Ajay.Kathat
2021-09-21 15:08 ` Kalle Valo
2021-09-16 16:49 ` [PATCH v2 03/11] wilc1000: add new WID to pass wake_enable information to firmware Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 02/11] wilc1000: fix possible memory leak in cfg_scan_result() Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 04/11] wilc1000: configure registers to handle chip wakeup sequence Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 05/11] wilc1000: add reset/terminate/repeat command support for SPI bus Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 06/11] wilc1000: handle read failure issue for clockless registers Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 07/11] wilc1000: ignore clockless registers status response for SPI Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 08/11] wilc1000: invoke chip reset register before firmware download Ajay.Kathat
2021-09-16 16:49 ` Ajay.Kathat [this message]
2021-09-16 16:49 ` [PATCH v2 10/11] wilc1000: use correct write command sequence in wilc_spi_sync_ext() Ajay.Kathat
2021-09-16 16:49 ` [PATCH v2 11/11] wilc1000: increase config packets response wait timeout limit Ajay.Kathat
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