it is unnecessary to call spin_lock_irqsave in a interrupt handler. Signed-off-by: Tuo Cao <91tuocao@xxxxxxxxx> --- drivers/scsi/a2091.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c index 74312400468b..0a79ba0b20f7 100644 --- a/drivers/scsi/a2091.c +++ b/drivers/scsi/a2091.c @@ -34,14 +34,13 @@ static irqreturn_t a2091_intr(int irq, void *data) struct Scsi_Host *instance = data; struct a2091_hostdata *hdata = shost_priv(instance); unsigned int status = hdata->regs->ISTR; - unsigned long flags; if (!(status & (ISTR_INT_F | ISTR_INT_P)) || !(status & ISTR_INTS)) return IRQ_NONE; - spin_lock_irqsave(instance->host_lock, flags); + spin_lock(instance->host_lock); wd33c93_intr(instance); - spin_unlock_irqrestore(instance->host_lock, flags); + spin_unlock(instance->host_lock); return IRQ_HANDLED; } -- 2.17.1
