dmaengine: pl330: fix warning in pl330_remove

When removing a device with less than 9 IRQs (AMBA_NR_IRQS), we'll get a
big WARN_ON from devres.c because pl330_remove calls devm_free_irqs for
unallocated irqs. Similarly to pl330_probe, check that IRQ number is
present before calling devm_free_irq.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 8b0da7fa520d27ac514228130c354f121a12b848..e90a7a0d760af6d031fa465208e88f2dd6f056b4 100644 (file)
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -3008,7 +3008,8 @@ static int pl330_remove(struct amba_device *adev)
 
        for (i = 0; i < AMBA_NR_IRQS; i++) {
                irq = adev->irq[i];
-               devm_free_irq(&adev->dev, irq, pl330);
+               if (irq)
+                       devm_free_irq(&adev->dev, irq, pl330);
        }
 
        dma_async_device_unregister(&pl330->ddma);