| From | Kamal Mostafa <> | Subject | [PATCH 3.8 057/124] b43legacy: Fix unload oops if firmware is not available | Date | Mon, 10 Feb 2014 11:39:57 -0800 |
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3.8.13.18 -stable review patch. If anyone has any objections, please let me know.
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From: Larry Finger <Larry.Finger@lwfinger.net>
commit 452028665312672c6ba9e16a19248ee00ead9400 upstream.
The asyncronous firmware load uses a completion struct to hold firmware processing until the user-space routines are up and running. There is. however, a problem in that the waiter is nevered canceled during teardown. As a result, unloading the driver when firmware is not available causes an oops.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/net/wireless/b43legacy/main.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 8c3f70e..ded7f6c 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -3918,6 +3918,7 @@ static void b43legacy_remove(struct ssb_device *dev) * as the ieee80211 unreg will destroy the workqueue. */ cancel_work_sync(&wldev->restart_work); cancel_work_sync(&wl->firmware_load); + complete(&wldev->fw_load_complete); B43legacy_WARN_ON(!wl); if (!wldev->fw.ucode) -- 1.8.3.2
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