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Date: Fri, 04 May 2012 13:43:30 -0700 From: Greg KH <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Grazvydas Ignotas <notasas@...il.com>, "John W. Linville" <linville@...driver.com> Subject: [ 46/47] wl1251: fix crash on remove due to leftover work item 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Grazvydas Ignotas <notasas@...il.com> commit 4c1bcdb5a3354b250b82a67549f57ac27a3bb85f upstream. This driver currently leaves elp_work behind when stopping, which occasionally results in data corruption because work function ends up accessing freed memory, typical symptoms of this are various worker_thread crashes. Fix it by cancelling elp_work. Signed-off-by: Grazvydas Ignotas <notasas@...il.com> Signed-off-by: John W. Linville <linville@...driver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/wireless/wl1251/main.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/net/wireless/wl1251/main.c +++ b/drivers/net/wireless/wl1251/main.c @@ -479,6 +479,7 @@ static void wl1251_op_stop(struct ieee80 cancel_work_sync(&wl->irq_work); cancel_work_sync(&wl->tx_work); cancel_work_sync(&wl->filter_work); + cancel_delayed_work_sync(&wl->elp_work); mutex_lock(&wl->mutex); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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