mtd: spi-nor: Fix errno on Quad Enable methods

When the Read-Modify-Write-Read-Back Quad Enable methods failed on
the Read-Back, they returned -EINVAL. Since this is an I/O error,
return -EIO.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 7510349..f5da752 100644 (file)
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1964,7 +1964,7 @@ static int macronix_quad_enable(struct spi_nor *nor)
 
        if (!(nor->bouncebuf[0] & SR_QUAD_EN_MX)) {
                dev_dbg(nor->dev, "Macronix Quad bit not set\n");
-               return -EINVAL;
+               return -EIO;
        }
 
        return 0;
@@ -2042,7 +2042,7 @@ static int spansion_read_cr_quad_enable(struct spi_nor *nor)
 
        if (!(sr_cr[1] & CR_QUAD_EN_SPAN)) {
                dev_dbg(nor->dev, "Spansion Quad bit not set\n");
-               return -EINVAL;
+               return -EIO;
        }
 
        return 0;
@@ -2086,7 +2086,7 @@ static int sr2_bit7_quad_enable(struct spi_nor *nor)
 
        if (!(*sr2 & SR2_QUAD_EN_BIT7)) {
                dev_dbg(nor->dev, "SR2 Quad bit not set\n");
-               return -EINVAL;
+               return -EIO;
        }
 
        return 0;