staging: r8712u: Fix regression caused by commit 8c213fa

commit 2080913e017ab9f88379d93fd09546ad95faf87b upstream.

In commit 8c213fa "staging: r8712u: Use asynchronous firmware loading",
the command to release the firmware was placed in the wrong routine.

In combination with the bug introduced in commit a5ee652 "staging: r8712u:
Interface-state not fully tracked", the driver attempts to upload firmware
that had already been released. This bug is the source of one of the
problems in https://bugs.archlinux.org/task/27996#comment89833.

Tested-by: Alberto Lago Ballesteros <saniukeokusainaya@gmail.com>
Tested-by: Adrian <agib@gmx.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index fb117430acdaf70abd6e84d34c9e9378a028603a..4bb2797ba9da5dc87ab7da7649498be6642d82ba 100644 (file)
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -476,9 +476,6 @@ static int netdev_close(struct net_device *pnetdev)
        r8712_free_assoc_resources(padapter);
        /*s2-4.*/
        r8712_free_network_queue(padapter);
-       release_firmware(padapter->fw);
-       /* never exit with a firmware callback pending */
-       wait_for_completion(&padapter->rtl8712_fw_ready);
        return 0;
 }
 

diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index 9bade184883bdd28a32bbe8f1e21fe365ef09993..ec41d38f4e1e93e853a8e329ce90bb7bc4f1b626 100644 (file)
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -30,6 +30,7 @@
 
 #include <linux/usb.h>
 #include <linux/module.h>
+#include <linux/firmware.h>
 
 #include "osdep_service.h"
 #include "drv_types.h"
@@ -621,6 +622,10 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
        struct _adapter *padapter = netdev_priv(pnetdev);
        struct usb_device *udev = interface_to_usbdev(pusb_intf);
 
+       if (padapter->fw_found)
+               release_firmware(padapter->fw);
+       /* never exit with a firmware callback pending */
+       wait_for_completion(&padapter->rtl8712_fw_ready);
        usb_set_intfdata(pusb_intf, NULL);
        if (padapter) {
                if (drvpriv.drv_registered == true)