[PATCH 5.16 0402/1039] spi: qcom: geni: set the error code for gpi transfer

From: Greg Kroah-Hartman
Date: Mon Jan 24 2022 - 18:38:57 EST


From: Vinod Koul <vkoul@xxxxxxxxxx>

[ Upstream commit 74b86d6af81be73bb74995ebeba74417e84b6b6f ]

Before we invoke spi_finalize_current_transfer() in
spi_gsi_callback_result() we should set the spi->cur_msg->status as
appropriate (0 for success, error otherwise).

The helps to return error on transfer and not wait till it timesout on
error

Fixes: b59c122484ec ("spi: spi-geni-qcom: Add support for GPI dma")
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220103071118.27220-1-vkoul@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-geni-qcom.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index e2affaee4e769..69e71aac85129 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -350,17 +350,21 @@ spi_gsi_callback_result(void *cb, const struct dmaengine_result *result)
{
struct spi_master *spi = cb;

+ spi->cur_msg->status = -EIO;
if (result->result != DMA_TRANS_NOERROR) {
dev_err(&spi->dev, "DMA txn failed: %d\n", result->result);
+ spi_finalize_current_transfer(spi);
return;
}

if (!result->residue) {
+ spi->cur_msg->status = 0;
dev_dbg(&spi->dev, "DMA txn completed\n");
- spi_finalize_current_transfer(spi);
} else {
dev_err(&spi->dev, "DMA xfer has pending: %d\n", result->residue);
}
+
+ spi_finalize_current_transfer(spi);
}

static int setup_gsi_xfer(struct spi_transfer *xfer, struct spi_geni_master *mas,
--
2.34.1