i2c: fix retry_count to return error when i2c bus checkidle was low

Signed-off-by: David Wu <wdc@rock-chips.com>

diff --git a/drivers/i2c/busses/i2c-rockchip.c b/drivers/i2c/busses/i2c-rockchip.c
index 3f64ff054538ab63a599b72ce9a2c0c3ca796522..953251121fe52009313a090c34abde4b903fbf83 100644 (file)
--- a/drivers/i2c/busses/i2c-rockchip.c
+++ b/drivers/i2c/busses/i2c-rockchip.c
@@ -741,7 +741,7 @@ static int rockchip_i2c_xfer(struct i2c_adapter *adap,
        clk_enable(i2c->clk);
        if (i2c->check_idle) {
                int state, retry = 10;
-               while (retry--) {
+               while (retry) {
                        state = rockchip_i2c_check_idle(i2c);
                        if (state == I2C_IDLE)
                                break;
@@ -749,6 +749,7 @@ static int rockchip_i2c_xfer(struct i2c_adapter *adap,
                                mdelay(10);
                        else
                                msleep(10);
+                       retry--;
                }
                if (retry == 0) {
                        dev_err(i2c->dev, "i2c is not in idle(state = %d)\n", state);