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path: root/drivers/net/wireless/mwifiex/scan.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/scan.c')
-rw-r--r--drivers/net/wireless/mwifiex/scan.c51
1 files changed, 26 insertions, 25 deletions
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index e36a75988f87..9171aaedbccd 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1296,7 +1296,7 @@ mwifiex_radio_type_to_band(u8 radio_type)
int mwifiex_scan_networks(struct mwifiex_private *priv,
const struct mwifiex_user_scan_cfg *user_scan_in)
{
- int ret = 0;
+ int ret;
struct mwifiex_adapter *adapter = priv->adapter;
struct cmd_ctrl_node *cmd_node;
union mwifiex_scan_cmd_config_tlv *scan_cfg_out;
@@ -1309,25 +1309,26 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
unsigned long flags;
if (adapter->scan_processing) {
- dev_dbg(adapter->dev, "cmd: Scan already in process...\n");
- return ret;
+ dev_err(adapter->dev, "cmd: Scan already in process...\n");
+ return -EBUSY;
}
- spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
- adapter->scan_processing = true;
- spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
-
if (priv->scan_block) {
- dev_dbg(adapter->dev,
+ dev_err(adapter->dev,
"cmd: Scan is blocked during association...\n");
- return ret;
+ return -EBUSY;
}
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->scan_processing = true;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
scan_cfg_out = kzalloc(sizeof(union mwifiex_scan_cmd_config_tlv),
GFP_KERNEL);
if (!scan_cfg_out) {
dev_err(adapter->dev, "failed to alloc scan_cfg_out\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto done;
}
buf_size = sizeof(struct mwifiex_chan_scan_param_set) *
@@ -1336,7 +1337,8 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
if (!scan_chan_list) {
dev_err(adapter->dev, "failed to alloc scan_chan_list\n");
kfree(scan_cfg_out);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto done;
}
mwifiex_config_scan(priv, user_scan_in, &scan_cfg_out->config,
@@ -1364,14 +1366,16 @@ int mwifiex_scan_networks(struct mwifiex_private *priv,
spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
flags);
}
- } else {
- spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
- adapter->scan_processing = true;
- spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
}
kfree(scan_cfg_out);
kfree(scan_chan_list);
+done:
+ if (ret) {
+ spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+ adapter->scan_processing = false;
+ spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+ }
return ret;
}
@@ -1430,8 +1434,8 @@ int mwifiex_check_network_compatibility(struct mwifiex_private *priv,
ret = mwifiex_is_network_compatible(priv, bss_desc,
priv->bss_mode);
if (ret)
- dev_err(priv->adapter->dev, "cannot find ssid "
- "%s\n", bss_desc->ssid.ssid);
+ dev_err(priv->adapter->dev,
+ "Incompatible network settings\n");
break;
default:
ret = 0;
@@ -1839,21 +1843,18 @@ static int mwifiex_scan_specific_ssid(struct mwifiex_private *priv,
struct cfg80211_ssid *req_ssid)
{
struct mwifiex_adapter *adapter = priv->adapter;
- int ret = 0;
+ int ret;
struct mwifiex_user_scan_cfg *scan_cfg;
- if (!req_ssid)
- return -1;
-
if (adapter->scan_processing) {
- dev_dbg(adapter->dev, "cmd: Scan already in process...\n");
- return ret;
+ dev_err(adapter->dev, "cmd: Scan already in process...\n");
+ return -EBUSY;
}
if (priv->scan_block) {
- dev_dbg(adapter->dev,
+ dev_err(adapter->dev,
"cmd: Scan is blocked during association...\n");
- return ret;
+ return -EBUSY;
}
scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg), GFP_KERNEL);