From: Vinod Koul Date: Thu, 6 Mar 2014 06:54:08 +0000 (+0530) Subject: dmaengine: pch_dma: use tasklet_kill in teardown X-Git-Tag: v3.15-rc1~39^2~7^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9068b032d0ff9285314d57a88051fe4111bbe73a;p=pandora-kernel.git 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 Signed-off-by: Vinod Koul --- Reading git-diff-tree failed