This patch fixes an issue that lacks the dma_unmap_sg() calling in
the error patch of renesas_sdhi_internal_dmac_start_dma().
Fixes: 0cbc94daa554 ("mmc: renesas_sdhi_internal_dmac: limit DMA RX for old SoCs")
Cc: <stable@xxxxxxxxxxxxxxx> # v4.17+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/mmc/host/renesas_sdhi_internal_dmac.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index f7f9773..d503511 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -173,8 +173,11 @@
if (data->flags & MMC_DATA_READ) {
dtran_mode |= DTRAN_MODE_CH_NUM_CH1;
if (test_bit(SDHI_INTERNAL_DMAC_ONE_RX_ONLY, &global_flags) &&
- test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags))
+ test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags)) {
+ dma_unmap_sg(&host->pdev->dev, sg, host->sg_len,
+ mmc_get_dma_dir(data));
goto force_pio;
+ }
} else {
dtran_mode |= DTRAN_MODE_CH_NUM_CH0;
}
--
1.9.1
