dmaengine: img-mdc: Remove unnecessary synchronize_irq() before devm_free_irq()

Calling synchronize_irq() right before devm_free_irq() is quite useless. On
one hand the IRQ can easily fire again before devm_free_irq() is entered,
on the other hand devm_free_irq() itself calls synchronize_irq() internally
(in a race condition free way), before any state associated with the IRQ is
freed.

Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq, dev;
@@
-synchronize_irq(irq);
 devm_free_irq(dev, irq, ...);
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Lars-Peter Clausen 2015-11-21 12:09:48 +01:00 committed by Vinod Koul
parent 1f281792f6
commit 9ff68186ea
1 changed files with 0 additions and 1 deletions

View File

@ -979,7 +979,6 @@ static int mdc_dma_remove(struct platform_device *pdev)
vc.chan.device_node) { vc.chan.device_node) {
list_del(&mchan->vc.chan.device_node); list_del(&mchan->vc.chan.device_node);
synchronize_irq(mchan->irq);
devm_free_irq(&pdev->dev, mchan->irq, mchan); devm_free_irq(&pdev->dev, mchan->irq, mchan);
tasklet_kill(&mchan->vc.task); tasklet_kill(&mchan->vc.task);