blob: f21b9396ace543003686375a00cc91e4af979ea7 [file] [log] [blame]
From a3d80824d93c41026247effd658c504dd0233938 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Fri, 29 Jun 2018 19:01:44 +0900
Subject: [PATCH 1567/1795] mmc: renesas_sdhi_internal_dmac: Fix missing unmap
in error patch
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@vger.kernel.org> # v4.17+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit fe6e04941aa12479a1a58656362bec74100bf7d7)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/mmc/host/renesas_sdhi_internal_dmac.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index e521f486b430..884034f10cbc 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -164,17 +164,14 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
goto force_pio;
/* This DMAC cannot handle if buffer is not 8-bytes alignment */
- if (!IS_ALIGNED(sg_dma_address(sg), 8)) {
- dma_unmap_sg(&host->pdev->dev, sg, host->sg_len,
- mmc_get_dma_dir(data));
- goto force_pio;
- }
+ if (!IS_ALIGNED(sg_dma_address(sg), 8))
+ goto force_pio_with_unmap;
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))
- goto force_pio;
+ goto force_pio_with_unmap;
} else {
dtran_mode |= DTRAN_MODE_CH_NUM_CH0;
}
@@ -189,6 +186,9 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
return;
+force_pio_with_unmap:
+ dma_unmap_sg(&host->pdev->dev, sg, host->sg_len, mmc_get_dma_dir(data));
+
force_pio:
host->force_pio = true;
renesas_sdhi_internal_dmac_enable_dma(host, false);
--
2.19.0