[ 166/167] [PATCH] staging: r8712u: Fix regression caused by commit 8c213fa

Ben Hutchings
2012-05-09T06:05:47Z

From: Larry Finger <Larry.Finger@lwfinger.net>

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>
---
drivers/staging/rtl8712/os_intfs.c | 3 ---
drivers/staging/rtl8712/usb_intf.c | 5 +++++
2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 4cf175f..7bbd53a 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -475,9 +475,6 @@ 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 fe0e2ff..e01fe14 100644
--- 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"
@@ -620,6 +621,10 @@ 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)
--
1.7.10