From: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
This option allows driver to finish pending operations in
disconnect handler by not killing URBs after usb_deregister
call.
We will get rid of global pointer 'usb_card' by moving code
from cleanup_module() to disconnect(). This will help to match
with our handling for SDIO and PCIe interfaces.
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
drivers/net/wireless/mwifiex/usb.c | 60 ++++++++++++++++++--------------------
1 file changed, 29 insertions(+), 31 deletions(-)
diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c
index edbe4af..db6377f 100644
--- a/drivers/net/wireless/mwifiex/usb.c
+++ b/drivers/net/wireless/mwifiex/usb.c
@@ -22,9 +22,9 @@
#define USB_VERSION "1.0"
+static u8 user_rmmod;
static struct mwifiex_if_ops usb_ops;
static struct semaphore add_remove_card_sem;
-static struct usb_card_rec *usb_card;
static struct usb_device_id mwifiex_usb_table[] = {
/* 8797 */
@@ -532,28 +532,43 @@ static int mwifiex_usb_resume(struct usb_interface *intf)
static void mwifiex_usb_disconnect(struct usb_interface *intf)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
+ struct mwifiex_adapter *adapter;
- if (!card) {
- pr_err("%s: card is NULL\n", __func__);
+ if (!card || !card->adapter) {
+ pr_err("%s: card or card->adapter is NULL\n", __func__);
return;
}
- mwifiex_usb_free(card);
+ adapter = card->adapter;
+ if (!adapter->priv_num)
+ return;
- if (card->adapter) {
- struct mwifiex_adapter *adapter = card->adapter;
+ /* In case driver is removed when asynchronous FW downloading is
+ * in progress
+ */
+ wait_for_completion(&adapter->fw_load);
- if (!adapter->priv_num)
- return;
+ if (user_rmmod) {
+#ifdef CONFIG_PM
+ if (adapter->is_suspended)
+ mwifiex_usb_resume(intf);
+#endif
+
+ mwifiex_deauthenticate_all(adapter);
- dev_dbg(adapter->dev, "%s: removing card\n", __func__);
- mwifiex_remove_card(adapter, &add_remove_card_sem);
+ mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
+ MWIFIEX_BSS_ROLE_ANY),
+ MWIFIEX_FUNC_SHUTDOWN);
}
+ mwifiex_usb_free(card);
+
+ dev_dbg(adapter->dev, "%s: removing card\n", __func__);
+ mwifiex_remove_card(adapter, &add_remove_card_sem);
+
usb_set_intfdata(intf, NULL);
usb_put_dev(interface_to_usbdev(intf));
kfree(card);
- usb_card = NULL;
return;
}
@@ -565,6 +580,7 @@ static struct usb_driver mwifiex_usb_driver = {
.id_table = mwifiex_usb_table,
.suspend = mwifiex_usb_suspend,
.resume = mwifiex_usb_resume,
+ .soft_unbind = 1,
};
static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter)
@@ -762,7 +778,6 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
card->adapter = adapter;
adapter->dev = &card->udev->dev;
- usb_card = card;
switch (le16_to_cpu(card->udev->descriptor.idProduct)) {
case USB8897_PID_1:
@@ -1025,25 +1040,8 @@ static void mwifiex_usb_cleanup_module(void)
if (!down_interruptible(&add_remove_card_sem))
up(&add_remove_card_sem);
- if (usb_card && usb_card->adapter) {
- struct mwifiex_adapter *adapter = usb_card->adapter;
-
- /* In case driver is removed when asynchronous FW downloading is
- * in progress
- */
- wait_for_completion(&adapter->fw_load);
-
-#ifdef CONFIG_PM
- if (adapter->is_suspended)
- mwifiex_usb_resume(usb_card->intf);
-#endif
-
- mwifiex_deauthenticate_all(adapter);
-
- mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
- MWIFIEX_BSS_ROLE_ANY),
- MWIFIEX_FUNC_SHUTDOWN);
- }
+ /* set the flag as user is removing this module */
+ user_rmmod = 1;
usb_deregister(&mwifiex_usb_driver);
}
--
1.8.2.3
--
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