i2c: sh_mobile: fix timeout error handling

In a timeout case return an error immediately from the driver's
.master_xfer() method, instead of continuing and letting higher layers
fail.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>

diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 34024f3..daaf0eb 100644 (file)
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -521,8 +521,11 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
                k = wait_event_timeout(pd->wait,
                                       pd->sr & (ICSR_TACK | SW_DONE),
                                       5 * HZ);
-               if (!k)
+               if (!k) {
                        dev_err(pd->dev, "Transfer request timed out\n");
+                       err = -ETIMEDOUT;
+                       break;
+               }
 
                retry_count = 1000;
 again: