diff options
| author | jun qian <hangdianqj@163.com> | 2018-09-11 07:54:46 -0700 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-12-11 20:56:52 +0100 |
| commit | 3782cc3725b31767101de6439f26ed8693d80c4c (patch) | |
| tree | 6e827bac4f00b7f0f32b96124fe6fce33c87d914 | |
| parent | 4e7bca6fc07bf9526d797b9787dcb21e40cd10cf (diff) | |
| download | linux-3782cc3725b31767101de6439f26ed8693d80c4c.tar.bz2 | |
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 <hangdianqj@163.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 437294ea2f0a..64b348a00814 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; } |