From 350bef8134af85a1a39fb13844d79c6579e062e4 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sat, 21 Nov 2015 12:20:30 +0100 Subject: [PATCH] staging: rts5208: Remove unnecessary synchronize_irq() before free_irq() 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: // @@ expression irq; @@ -synchronize_irq(irq); free_irq(irq, ...); // Signed-off-by: Lars-Peter Clausen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rts5208/rtsx.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c index 1fe8e3e0a3fb..5dfcdfb28307 100644 --- a/drivers/staging/rts5208/rtsx.c +++ b/drivers/staging/rts5208/rtsx.c @@ -320,7 +320,6 @@ static int rtsx_suspend(struct pci_dev *pci, pm_message_t state) rtsx_do_before_power_down(chip, PM_S3); if (dev->irq >= 0) { - synchronize_irq(dev->irq); free_irq(dev->irq, (void *)dev); dev->irq = -1; } @@ -398,7 +397,6 @@ static void rtsx_shutdown(struct pci_dev *pci) rtsx_do_before_power_down(chip, PM_S1); if (dev->irq >= 0) { - synchronize_irq(dev->irq); free_irq(dev->irq, (void *)dev); dev->irq = -1; } -- 2.20.1