mmc: renesas_sdhi_internal_dmac: Cannot clear the RX_IN_USE in abort

This patch is fixes an issue that the SDHI_INTERNAL_DMAC_RX_IN_USE
flag cannot be cleared because tmio_mmc_core sets the host->data
to NULL before the tmio_mmc_core calls tmio_mmc_abort_dma().

So, this patch clears the SDHI_INTERNAL_DMAC_RX_IN_USE in
the renesas_sdhi_internal_dmac_abort_dma() anyway. This doesn't
cause any side effects.

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>

diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index d676a20d959fb32adb431a8764fca04806c76b97..d032bd63444d10295826750b80a560c0335ddda5 100644 (file)
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -139,8 +139,7 @@ renesas_sdhi_internal_dmac_abort_dma(struct tmio_mmc_host *host) {
        renesas_sdhi_internal_dmac_dm_write(host, DM_CM_RST,
                                            RST_RESERVED_BITS | val);
 
-       if (host->data && host->data->flags & MMC_DATA_READ)
-               clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags);
+       clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags);
 
        renesas_sdhi_internal_dmac_enable_dma(host, true);
 }