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dma: imx-sdma: Adding tasklet_kill() in sdma_remove function.

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Several dma drivers calls tasklet_kill() in remove function. This is done
because all running tasklets should be killed on remove. This is missing
in imx sdma driver, so adding tasklet_kill() in sdma_remove function.

Signed-off-by: Vignesh Raman <Vignesh_Raman@mentor.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Vignesh Raman 2014-08-05 18:39:42 +05:30 committed by Vinod Koul
parent 23e1181137
commit c12fe49726
1 changed files with 7 additions and 0 deletions
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7
drivers/dma/imx-sdma.c
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@ -1645,12 +1645,19 @@ static int sdma_remove(struct platform_device *pdev)
struct sdma_engine *sdma = platform_get_drvdata(pdev);
struct resource *iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
int irq = platform_get_irq(pdev, 0);
int i;
dma_async_device_unregister(&sdma->dma_device);
kfree(sdma->script_addrs);
free_irq(irq, sdma);
iounmap(sdma->regs);
release_mem_region(iores->start, resource_size(iores));
/* Kill the tasklet */
for (i = 0; i < MAX_DMA_CHANNELS; i++) {
struct sdma_channel *sdmac = &sdma->channel[i];
tasklet_kill(&sdmac->tasklet);
}
kfree(sdma);
platform_set_drvdata(pdev, NULL);