[PATCH] mtd: nand: r852: Remove unnecessary synchronize_irq() before free_irq()

[Lars-Peter Clausen]

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 <lars at metafoo.de>
---
 drivers/mtd/nand/r852.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index d8bb2be..be28cdd 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -980,7 +980,6 @@ static void r852_remove(struct pci_dev *pci_dev)
 
 	/* Stop interrupts */
 	r852_disable_irqs(dev);
-	synchronize_irq(dev->irq);
 	free_irq(dev->irq, dev);
 
 	/* Cleanup */
-- 
2.1.4