mtd: spi-nor: cadence-quadspi: Return error code in cqspi_direct_read_execute()

We return 0 unconditionally in 'cqspi_direct_read_execute()'.
However, 'ret' is set to some error codes in several error handling
paths.

Return 'ret' instead to propagate the error code.

Fixes: ffa639e069fb ("mtd: spi-nor: cadence-quadspi: Add DMA support for direct mode reads")
Cc: <stable@vger.kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
index e24db817154ee73ad1fc0fd9586f4e294fc2886a..d846428ef038e6b76f84591f73d40e9a4d30db33 100644 (file)
--- a/drivers/mtd/spi-nor/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/cadence-quadspi.c
@@ -996,7 +996,7 @@ static int cqspi_direct_read_execute(struct spi_nor *nor, u_char *buf,
 err_unmap:
        dma_unmap_single(nor->dev, dma_dst, len, DMA_FROM_DEVICE);
 
-       return 0;
+       return ret;
 }
 
 static ssize_t cqspi_read(struct spi_nor *nor, loff_t from,