diff options
| author |   Vinod Koul <vinod.koul@intel.com> | 2016-07-01 11:16:47 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-07-16 20:18:57 +0530 |
| commit | 85abae1760b5ec66d7b77d3d690ff65a84a8d592 (patch) | |
| tree | 3a7c44435cf68461ef87027aa3d77f359189b6c2 /drivers/dma | |
| parent | dmaengine: coh901318: explicitly freeup irq (diff) | |
| download | linux-dev-85abae1760b5ec66d7b77d3d690ff65a84a8d592.tar.xz linux-dev-85abae1760b5ec66d7b77d3d690ff65a84a8d592.zip | |
dmaengine: coh901318: kill the tasklets upon exit
drivers should ensure that tasklets are killed, so that they can't be
run after driver remove is executed.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/coh901318.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index ba044d4c1d53..9b86c3e85011 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -2758,6 +2758,21 @@ static int __init coh901318_probe(struct platform_device *pdev) coh901318_pool_destroy(&base->pool); return err; } +static void coh901318_base_remove(struct coh901318_base *base, const int *pick_chans) +{ + int chans_i; + int i = 0; + struct coh901318_chan *cohc; + + for (chans_i = 0; pick_chans[chans_i] != -1; chans_i += 2) { + for (i = pick_chans[chans_i]; i <= pick_chans[chans_i+1]; i++) { + cohc = &base->chans[i]; + + tasklet_kill(&cohc->tasklet); + } + } + +} static int coh901318_remove(struct platform_device *pdev) { @@ -2765,6 +2780,9 @@ static int coh901318_remove(struct platform_device *pdev) devm_free_irq(&pdev->dev, base->irq, base); + coh901318_base_remove(base, dma_slave_channels); + coh901318_base_remove(base, dma_memcpy_channels); + of_dma_controller_free(pdev->dev.of_node); dma_async_device_unregister(&base->dma_memcpy); dma_async_device_unregister(&base->dma_slave); |