[PATCH] dmaengine: k3dma: replace spin_lock_irqsave with spin_lock in ISR

From: jun qian
Date: Tue Sep 11 2018 - 10:25:17 EST


As you are already in ISR, it is unnecessary to call spin_lock_irqsave.

Signed-off-by: jun qian <hangdianqj@xxxxxxx>
Cc: Barry song <21cnbao@xxxxxxxxx>
---
drivers/dma/k3dma.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index 6bfa217ed6d0..30052258ffd5 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -216,22 +216,21 @@ static irqreturn_t k3_dma_int_handler(int irq, void *dev_id)
i = __ffs(stat);
stat &= ~BIT(i);
if (likely(tc1 & BIT(i)) || (tc2 & BIT(i))) {
- unsigned long flags;

p = &d->phy[i];
c = p->vchan;
if (c && (tc1 & BIT(i))) {
- spin_lock_irqsave(&c->vc.lock, flags);
+ spin_lock(&c->vc.lock);
vchan_cookie_complete(&p->ds_run->vd);
p->ds_done = p->ds_run;
p->ds_run = NULL;
- spin_unlock_irqrestore(&c->vc.lock, flags);
+ spin_unlock(&c->vc.lock);
}
if (c && (tc2 & BIT(i))) {
- spin_lock_irqsave(&c->vc.lock, flags);
+ spin_lock(&c->vc.lock);
if (p->ds_run != NULL)
vchan_cyclic_callback(&p->ds_run->vd);
- spin_unlock_irqrestore(&c->vc.lock, flags);
+ spin_unlock(&c->vc.lock);
}
irq_chan |= BIT(i);
}
--
2.17.1