Commit 5ba080aa authored Dec 07, 2017 by Kedareswara rao Appana Committed by Vinod Koul Dec 18, 2017

dmaengine: zynqmp_dma: Fix race condition in the probe



Incase of interrupt property is not present,
Driver is trying to free an invalid irq,
This patch fixes it by adding a check before freeing the irq.

Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 8d90035e

drivers/dma/xilinx/zynqmp_dma.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -851,6 +851,7 @@ static void zynqmp_dma_chan_remove(struct zynqmp_dma_chan *chan)
		if (!chan)
		return;

		if (chan->irq)
		devm_free_irq(chan->zdev->dev, chan->irq, chan);
		tasklet_kill(&chan->tasklet);
		list_del(&chan->common.device_node);