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

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>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 40e65a4df94d..c615e88c118a 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -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);