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Subject[PATCH] dmaengine: zx-dma: replace spin_lock_irqsave with spin_lock in ISR
Date
As you are already in ISR, it is unnecessary to call spin_lock_irqsave.

Signed-off-by: jun qian <hangdianqj@163.com>
Cc: Barry song <21cnbao@gmail.com>
---
drivers/dma/zx_dma.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c
index 2571bc7693df..111ab2db83b1 100644
--- a/drivers/dma/zx_dma.c
+++ b/drivers/dma/zx_dma.c
@@ -288,9 +288,8 @@ static irqreturn_t zx_dma_int_handler(int irq, void *dev_id)
p = &d->phy[i];
c = p->vchan;
if (c) {
- unsigned long flags;

- spin_lock_irqsave(&c->vc.lock, flags);
+ spin_lock(&c->vc.lock);
if (c->cyclic) {
vchan_cyclic_callback(&p->ds_run->vd);
} else {
@@ -298,7 +297,7 @@ static irqreturn_t zx_dma_int_handler(int irq, void *dev_id)
p->ds_done = p->ds_run;
task = 1;
}
- spin_unlock_irqrestore(&c->vc.lock, flags);
+ spin_unlock(&c->vc.lock);
irq_chan |= BIT(i);
}
}
--
2.17.1


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