[PATCH 16/23] mtd: spi-nor: Fix errno on quad_enable methods

[<Tudor.Ambarus@xxxxxxxxxxxxx>]

From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>

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@xxxxxxxxxxxxx>
---
 drivers/mtd/spi-nor/spi-nor.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 20d32b7db268..303a7bcf3423 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1862,7 +1862,7 @@ static int macronix_quad_enable(struct spi_nor *nor)
 
 	if (!(nor->bouncebuf[0] & SR_QUAD_EN_MX)) {
 		dev_err(nor->dev, "Macronix Quad bit not set\n");
-		return -EINVAL;
+		return -EIO;
 	}
 
 	return 0;
@@ -1940,7 +1940,7 @@ static int spansion_read_cr_quad_enable(struct spi_nor *nor)
 
 	if (!(sr_cr[1] & CR_QUAD_EN_SPAN)) {
 		dev_err(nor->dev, "Spansion Quad bit not set\n");
-		return -EINVAL;
+		return -EIO;
 	}
 
 	return 0;
@@ -1985,7 +1985,7 @@ static int sr2_bit7_quad_enable(struct spi_nor *nor)
 
 	if (!(*sr2 & SR2_QUAD_EN_BIT7)) {
 		dev_err(nor->dev, "SR2 Quad bit not set\n");
-		return -EINVAL;
+		return -EIO;
 	}
 
 	return 0;
-- 
2.9.5


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