Patch "staging: vt6656: [BUG] main_usb.c oops on device_close move flag earlier." has been added to the 3.0-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    staging: vt6656: [BUG] main_usb.c oops on device_close move flag earlier.

to the 3.0-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     staging-vt6656-main_usb.c-oops-on-device_close-move-flag-earlier.patch
and it can be found in the queue-3.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From e3eb270fab7734427dd8171a93e4946fe28674bc Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Date: Sun, 22 Sep 2013 19:48:54 +0100
Subject: staging: vt6656: [BUG] main_usb.c oops on device_close move flag earlier.

From: Malcolm Priestley <tvboxspy@xxxxxxxxx>

commit e3eb270fab7734427dd8171a93e4946fe28674bc upstream.

The vt6656 is prone to resetting on the usb bus.

It seems there is a race condition and wpa supplicant is
trying to open the device via iw_handlers before its actually
closed at a stage that the buffers are being removed.

The device is longer considered open when the
buffers are being removed. So move ~DEVICE_FLAGS_OPENED
flag to before freeing the device buffers.

Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/staging/vt6656/main_usb.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -1228,6 +1228,8 @@ device_release_WPADEV(pDevice);
     memset(pMgmt->abyCurrBSSID, 0, 6);
     pMgmt->eCurrState = WMAC_STATE_IDLE;
 
+	pDevice->flags &= ~DEVICE_FLAGS_OPENED;
+
     device_free_tx_bufs(pDevice);
     device_free_rx_bufs(pDevice);
     device_free_int_bufs(pDevice);
@@ -1239,7 +1241,6 @@ device_release_WPADEV(pDevice);
     usb_free_urb(pDevice->pInterruptURB);
 
     BSSvClearNodeDBTable(pDevice, 0);
-    pDevice->flags &=(~DEVICE_FLAGS_OPENED);
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_close2 \n");
 


Patches currently in stable-queue which might be from tvboxspy@xxxxxxxxx are

queue-3.0/staging-vt6656-main_usb.c-oops-on-device_close-move-flag-earlier.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]