From: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
Clear the data pointer stored in USB interface structure in
this handler. This helps to return from mwifiex_usb_disconnect()
if driver deinitialization is already performed while handling
an error path for mwifiex_usb_probe().
USB8797 card gets enumerated twice. First enumeration is for
firmware download and second enumeration expects firmware
initialization. mwifiex_usb_probe() always takes care of
deinitialization for first enumeration after firmware download.
Also, this change matches 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 | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c
index f90fe21..fca98b5 100644
--- a/drivers/net/wireless/mwifiex/usb.c
+++ b/drivers/net/wireless/mwifiex/usb.c
@@ -786,6 +786,13 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
return 0;
}
+static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
+{
+ struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
+
+ usb_set_intfdata(card->intf, NULL);
+}
+
static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
struct mwifiex_fw_image *fw)
{
@@ -978,6 +985,7 @@ static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
static struct mwifiex_if_ops usb_ops = {
.register_dev = mwifiex_register_dev,
+ .unregister_dev = mwifiex_unregister_dev,
.wakeup = mwifiex_pm_wakeup_card,
.wakeup_complete = mwifiex_pm_wakeup_card_complete,
--
1.8.2.3
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