[PATCH] mtd: spi-nor: cadence-quadspi: Fix the return value in case of error in 'cqspi_direct_read_execute()'

[Christophe JAILLET]

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")
Signed-off-by: Christophe JAILLET <***@wanadoo.fr>
---
drivers/mtd/spi-nor/cadence-quadspi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
index 8e714fbfa521..6e9cbd1a0b6d 100644
--- 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_DEV_TO_MEM);

- return 0;
+ return ret;
}

static ssize_t cqspi_read(struct spi_nor *nor, loff_t from,

[Boris Brezillon]

On Tue, 16 Oct 2018 09:13:46 +0200

Post by Christophe JAILLET
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")

Queued to the fixes branch after adjusting the subject to make it
shorter and adding a Cc-stable tag.

Thanks,

Boris

Post by Christophe JAILLET
---
drivers/mtd/spi-nor/cadence-quadspi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
index 8e714fbfa521..6e9cbd1a0b6d 100644
--- 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,
dma_unmap_single(nor->dev, dma_dst, len, DMA_DEV_TO_MEM);
- return 0;
+ return ret;
}
static ssize_t cqspi_read(struct spi_nor *nor, loff_t from,