[Patch] :Fix ISR return value in i2c-mpc.c

[Amit Tomar]

In current scenario, ISR of i2c-mpc.c is returning IRQ_HANDLED for doing nothing which is not right .

With below patch ISR now return IRQ_NONE for doing nothing and IRQ_HANDLED for doing handler work.


Signed-off-by: Amit Singh Tomar <amit.tomar at freescale.com>
---
drivers/i2c/busses/i2c-mpc.c |    3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 0edf630..7a3136f 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -95,8 +95,9 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
        i2c->interrupt = readb(i2c->base + MPC_I2C_SR);
        writeb(0, i2c->base + MPC_I2C_SR);
        wake_up(&i2c->queue);
+       return IRQ_HANDLED;
    }
-  return IRQ_HANDLED;
+  return IRQ_NONE;
}

/* Sometimes 9th clock pulse isn't generated, and slave doesn't release
-- 
1.7.9.5