Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand 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;
@@
-synchronize_irq(irq);
free_irq(irq, ...);
// </smpl>
Signed-off-by: Lars-Peter Clausen <l...@metafoo.de>
---
drivers/media/pci/dm1105/dm1105.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/media/pci/dm1105/dm1105.c
b/drivers/media/pci/dm1105/dm1105.c
index 88915fb..5dd5047 100644
--- a/drivers/media/pci/dm1105/dm1105.c
+++ b/drivers/media/pci/dm1105/dm1105.c
@@ -1206,7 +1206,6 @@ static void dm1105_remove(struct pci_dev *pdev)
i2c_del_adapter(&dev->i2c_adap);
dm1105_hw_exit(dev);
- synchronize_irq(pdev->irq);
free_irq(pdev->irq, dev);
pci_iounmap(pdev, dev->io_mem);
pci_release_regions(pdev);
--
2.1.4
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