diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2016-03-28 11:31:26 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-05-13 19:40:26 -0400 |
| commit | d42ed55aaf0e9040b063189b72928279848c0a1b (patch) | |
| tree | e84ea1965ece541191c6a0bc23d120a6b6236296 /drivers | |
| parent | fb997816fdf3475fd9bd9a76b6b77aba03864835 (diff) | |
i40iw: 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:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
free_irq(irq, ...);
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Faisal Latif <faisal.latif#intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_main.c b/drivers/infiniband/hw/i40iw/i40iw_main.c index 72a10a19880a..53d4fd3ba1d0 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_main.c +++ b/drivers/infiniband/hw/i40iw/i40iw_main.c @@ -270,7 +270,6 @@ static void i40iw_disable_irq(struct i40iw_sc_dev *dev, i40iw_wr32(dev->hw, I40E_PFINT_DYN_CTLN(msix_vec->idx - 1), 0); else i40iw_wr32(dev->hw, I40E_VFINT_DYN_CTLN1(msix_vec->idx - 1), 0); - synchronize_irq(msix_vec->irq); free_irq(msix_vec->irq, dev_id); } |