Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
dmaengine: pch_dma: use tasklet_kill in teardown
As discussed in [1] the tasklet_disable is not a proper function for teardown. We need to ensure irq is disabled, followed by ensuring that don't schedule any more tasklets and then its safe to use tasklet_kill(). Here in pch dma driver we need to use free_irq() before tasklet_kill(). So move up the free_irq() which will ensure that the irq is disabled and also wait till all scheduled interrupts are executed by invoking synchronize_irq(). [1]: http://lwn.net/Articles/588457/ Reported-by: Thomas Gleixner <[email protected]> Signed-off-by: Vinod Koul <[email protected]>
- Loading branch information