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mwifiex: minor cleanup and a fix in scan semaphore usage

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mwifiex_request_scan() takes care of synchronous internal scan
performed by driver during association.
Currently the semaphore acquired for the scan is unnecessarily
released at the end of different paths. Also, failure paths
returning error code other than "-1" are not considered.

We will release it at the end of routine to fix above issues.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Amitkumar Karwar 2012-10-19 19:19:17 -07:00 committed by John W. Linville
parent f162cac83b
commit b0e70c2fb6
5 changed files with 1 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/mwifiex/cfg80211.c
View File

@ -2119,7 +2119,6 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
}
sema_init(&priv->async_sem, 1);
priv->scan_pending_on_block = false;
dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);

5
drivers/net/wireless/mwifiex/init.c
View File

@ -97,11 +97,6 @@ static void scan_delay_timer_fn(unsigned long data)
kfree(priv->user_scan_cfg);
priv->user_scan_cfg = NULL;
}
if (priv->scan_pending_on_block) {
priv->scan_pending_on_block = false;
up(&priv->async_sem);
}
goto done;
}

1
drivers/net/wireless/mwifiex/main.h
View File

@ -482,7 +482,6 @@ struct mwifiex_private {
u8 nick_name[16];
u16 current_key_index;
struct semaphore async_sem;
u8 scan_pending_on_block;
u8 report_scan_result;
struct cfg80211_scan_request *scan_request;
struct mwifiex_user_scan_cfg *user_scan_cfg;

10
drivers/net/wireless/mwifiex/scan.c
View File

@ -1762,10 +1762,6 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
}
if (priv->report_scan_result)
priv->report_scan_result = false;
if (priv->scan_pending_on_block) {
priv->scan_pending_on_block = false;
up(&priv->async_sem);
}
if (priv->user_scan_cfg) {
if (priv->scan_request) {
@ -1914,7 +1910,6 @@ int mwifiex_request_scan(struct mwifiex_private *priv,
__func__);
return -1;
}
priv->scan_pending_on_block = true;
priv->adapter->scan_wait_q_woken = false;
@ -1928,10 +1923,7 @@ int mwifiex_request_scan(struct mwifiex_private *priv,
if (!ret)
ret = mwifiex_wait_queue_complete(priv->adapter);
if (ret == -1) {
priv->scan_pending_on_block = false;
up(&priv->async_sem);
}
up(&priv->async_sem);
return ret;
}

4
drivers/net/wireless/mwifiex/sta_cmdresp.c
View File

@ -85,10 +85,6 @@ mwifiex_process_cmdresp_error(struct mwifiex_private *priv,
spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
if (priv->report_scan_result)
priv->report_scan_result = false;
if (priv->scan_pending_on_block) {
priv->scan_pending_on_block = false;
up(&priv->async_sem);
}
break;
case HostCmd_CMD_MAC_CONTROL: