From 3782cc3725b31767101de6439f26ed8693d80c4c Mon Sep 17 00:00:00 2001 From: jun qian Date: Tue, 11 Sep 2018 07:54:46 -0700 Subject: [PATCH] i2c: tegra: replace spin_lock_irqsave with spin_lock in ISR As you are already in ISR, it is unnecessary to call spin_lock_irqsave. Signed-off-by: jun qian Reviewed-by: Dmitry Osipenko Acked-by: Thierry Reding Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-tegra.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 437294e..64b348a 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -608,11 +608,10 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) u32 status; const u32 status_err = I2C_INT_NO_ACK | I2C_INT_ARBITRATION_LOST; struct tegra_i2c_dev *i2c_dev = dev_id; - unsigned long flags; status = i2c_readl(i2c_dev, I2C_INT_STATUS); - spin_lock_irqsave(&i2c_dev->xfer_lock, flags); + spin_lock(&i2c_dev->xfer_lock); if (status == 0) { dev_warn(i2c_dev->dev, "irq status 0 %08x %08x %08x\n", i2c_readl(i2c_dev, I2C_PACKET_TRANSFER_STATUS), @@ -670,7 +669,7 @@ err: complete(&i2c_dev->msg_complete); done: - spin_unlock_irqrestore(&i2c_dev->xfer_lock, flags); + spin_unlock(&i2c_dev->xfer_lock); return IRQ_HANDLED; } -- 2.7.4