Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

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>

authored by

Yoshihiro Shimoda and committed by
Ulf Hansson
25a98edd fe6e0494

+1 -2
+1 -2
drivers/mmc/host/renesas_sdhi_internal_dmac.c
··· 139 139 renesas_sdhi_internal_dmac_dm_write(host, DM_CM_RST, 140 140 RST_RESERVED_BITS | val); 141 141 142 - if (host->data && host->data->flags & MMC_DATA_READ) 143 - clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags); 142 + clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags); 144 143 145 144 renesas_sdhi_internal_dmac_enable_dma(host, true); 146 145 }