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| author | Mårten Lindahl <marten.lindahl@axis.com> | 2021-11-03 19:27:16 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-12-14 21:35:24 +0100 |
| commit | 9f0d3cc23842cb827493d4a59e474d0808a3f9f6 (patch) | |
| tree | 1e61cec4536193fc4eeed4a15d20e95925fd1642 /drivers/mmc | |
| parent | mmc: omap_hsmmc: Revert special init for wl1251 (diff) | |
| download | linux-9f0d3cc23842cb827493d4a59e474d0808a3f9f6.tar.xz linux-9f0d3cc23842cb827493d4a59e474d0808a3f9f6.zip | |
mmc: dw_mmc: Avoid hung state if GEN_CMD transfer fails
If we get a data error during a block transfer command, a stop command
(CMD12) is normally initiated. But this does not work for the general
command (CMD56), but instead the action is ignored and an uninitialized
command struct is used for the stop action, with unexpected result.
Fix this by adding a check for GEN_CMD when preparing stop transmission.
Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Link: https://lore.kernel.org/r/20211103182716.28419-1-marten.lindahl@axis.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index d977f34f6b55..439080fbd87d 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -335,7 +335,8 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd) cmdr == MMC_WRITE_BLOCK || cmdr == MMC_WRITE_MULTIPLE_BLOCK || cmdr == MMC_SEND_TUNING_BLOCK || - cmdr == MMC_SEND_TUNING_BLOCK_HS200) { + cmdr == MMC_SEND_TUNING_BLOCK_HS200 || + cmdr == MMC_GEN_CMD) { stop->opcode = MMC_STOP_TRANSMISSION; stop->arg = 0; stop->flags = MMC_RSP_R1B | MMC_CMD_AC; |