spi: limit reaches -1, tested 0

[linux-2.6-omap-h63xx.git] / drivers / spi / spi_imx.c

diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 0480d8bb19d32b7a6d81b2b43efafc2a7fe8defd..014af69fc1bbba62ac386a1f147c7e816af14a0b 100644 (file)
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -779,7 +779,8 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data)
 
                        /* Read trailing bytes */
                        limit = loops_per_jiffy << 1;
-                       while ((read(drv_data) == 0) && limit--);
+                       while ((read(drv_data) == 0) && --limit)
+                               cpu_relax();
 
                        if (limit == 0)
                                dev_err(&drv_data->pdev->dev,