spi: cadence_qspi: Do not return unset error code

In spi_calibration if the low range fails to calibrate then the code
attempted to return the variable err but this has not been set in this
case. Instead just return -EIO.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>

diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index 9edbfaa821b64a542636433fe1054afce5de8cb2..d8d9a4056fe46ae095d6e093cbe3e5bb4d8f6736 100644 (file)
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -142,7 +142,7 @@ static int spi_calibration(struct udevice *bus, uint hz)
 
        if (range_lo == -1) {
                puts("SF: Calibration failed (low range)\n");
-               return err;
+               return -EIO;
        }
 
        /* Disable QSPI for subsequent initialization */