[PATCH] mtd: rawnand: r852: replace spin_lock_irqsave by spin_lock in hard IRQ
Tian Tao
tiantao6 at hisilicon.com
Mon Mar 15 01:08:15 GMT 2021
The code has been in a irq-disabled context since it is hard IRQ. There
is no necessity to do it again.
Signed-off-by: Tian Tao <tiantao6 at hisilicon.com>
---
drivers/mtd/nand/raw/r852.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/raw/r852.c b/drivers/mtd/nand/raw/r852.c
index c742354..ebe859c 100644
--- a/drivers/mtd/nand/raw/r852.c
+++ b/drivers/mtd/nand/raw/r852.c
@@ -724,10 +724,9 @@ static irqreturn_t r852_irq(int irq, void *data)
struct r852_device *dev = (struct r852_device *)data;
uint8_t card_status, dma_status;
- unsigned long flags;
irqreturn_t ret = IRQ_NONE;
- spin_lock_irqsave(&dev->irqlock, flags);
+ spin_lock(&dev->irqlock);
/* handle card detection interrupts first */
card_status = r852_read_reg(dev, R852_CARD_IRQ_STA);
@@ -813,7 +812,7 @@ static irqreturn_t r852_irq(int irq, void *data)
dbg("strange card status = %x", card_status);
out:
- spin_unlock_irqrestore(&dev->irqlock, flags);
+ spin_unlock(&dev->irqlock);
return ret;
}
--
2.7.4
More information about the linux-mtd
mailing list