in bfin_spi_pump_transfers()
/* Setup the transfer state based on the type of transfer */
if (bfin_spi_flush(drv_data) == 0) {
dev_err(&drv_data->pdev->dev, "pump_transfers: flush failed\n");
...
But when limit is reached, bfin_spi_flush() returns -1.
Signed-off-by: Roel Kluin <[email protected]>
---
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index f014cc2..ada9b54 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -169,8 +169,10 @@ static int bfin_spi_flush(struct driver_data *drv_data)
unsigned long limit = loops_per_jiffy << 1;
/* wait for stop and clear stat */
- while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && limit--)
+ while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && limit) {
cpu_relax();
+ limit--;
+ }
write_STAT(drv_data, BIT_STAT_CLR);
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