3.12-stable review patch. If anyone has any objections, please let me know.
------------------ From: Thomas Gleixner <[email protected]> commit 73beb63d290f961c299526852884846b0d868840 upstream. This fixes a kernel panic when resuming from suspend to RAM. Without this fix an interrupt hits after the delayed work is canceled and thus requeues it. So we end up freeing an armed timer. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/mfd/rtsx_pcr.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -1230,8 +1230,14 @@ static void rtsx_pci_remove(struct pci_d pcr->remove_pci = true; - cancel_delayed_work(&pcr->carddet_work); - cancel_delayed_work(&pcr->idle_work); + /* Disable interrupts at the pcr level */ + spin_lock_irq(&pcr->lock); + rtsx_pci_writel(pcr, RTSX_BIER, 0); + pcr->bier = 0; + spin_unlock_irq(&pcr->lock); + + cancel_delayed_work_sync(&pcr->carddet_work); + cancel_delayed_work_sync(&pcr->idle_work); mfd_remove_devices(&pcidev->dev); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
