i2c: tegra: vi: Fix vii2c isr function

Correct the spin lock sequence in vii2c interrupt
service routine.

Bug 1798951

Change-Id: I51f629b279c6a8d32c18d28dfa6977fbafee6095
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: http://git-master/r/1277862
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Wenjia Zhou <wenjiaz@nvidia.com>
Reviewed-by: Bhanu Murthy V <bmurthyv@nvidia.com>
Reviewed-by: Jihoon Bang <jbang@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/i2c/busses/i2c-tegra-vi.c b/drivers/i2c/busses/i2c-tegra-vi.c
index 1901beead..b37b2ecc5 100644
--- a/drivers/i2c/busses/i2c-tegra-vi.c
+++ b/drivers/i2c/busses/i2c-tegra-vi.c
@@ -1130,9 +1130,10 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id)
         unsigned long flags;
         u32 mask;
 
+        spin_lock_irqsave(&i2c_dev->xfer_lock, flags);
+
         status = i2c_readl(i2c_dev, I2C_INT_STATUS);
 
-        spin_lock_irqsave(&i2c_dev->xfer_lock, flags);
         if (status == 0) {
                 dev_warn(i2c_dev->dev, "irq status 0 %08x %08x %08x\n",
                          i2c_readl(i2c_dev, I2C_PACKET_TRANSFER_STATUS),