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Date: Sun, 12 Jan 2014 15:11:39 -0600 From: Larry Finger <Larry.Finger@...inger.net> To: linville@...driver.com Cc: linux-wireless@...r.kernel.org, Larry Finger <Larry.Finger@...inger.net>, netdev@...r.kernel.org, Stable <stable@...r.kernel.org> Subject: [PATCH 3/3 V2] b43legacy: Fix unload oops if firmware is not available 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@...inger.net> Cc: Stable <stable@...r.kernel.org> --- V2 - Addresses the comments of Ben Hutchings and removes the race condition. 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 5726688..349c776 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -3919,6 +3919,7 @@ 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) -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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