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mmc: block: Be sure to wait while busy in CQE error recovery

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commit c616696a90 upstream.

STOP command does not guarantee to wait while busy, but subsequent command
MMC_CMDQ_TASK_MGMT to discard the queue will fail if the card is busy, so
be sure to wait by employing mmc_poll_for_busy().

Fixes: 72a5af554d ("mmc: core: Add support for handling CQE requests")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://lore.kernel.org/r/20231103084720.6886-4-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Adrian Hunter 2023-11-03 10:47:17 +02:00 committed by Greg Kroah-Hartman
parent 863a9cab1c
commit 4acb73ae26
3 changed files with 7 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/mmc/core/core.c
View file

@ -573,6 +573,8 @@ int mmc_cqe_recovery(struct mmc_host *host)
cmd.busy_timeout = MMC_CQE_RECOVERY_TIMEOUT;
mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
mmc_poll_for_busy(host->card, MMC_CQE_RECOVERY_TIMEOUT, true, true);
memset(&cmd, 0, sizeof(cmd));
cmd.opcode = MMC_CMDQ_TASK_MGMT;
cmd.arg = 1; /* Discard entire queue */

5
drivers/mmc/core/mmc_ops.c
View file

@ -448,8 +448,8 @@ int mmc_switch_status(struct mmc_card *card)
return __mmc_switch_status(card, true);
}
static int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
bool send_status, bool retry_crc_err)
int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
bool send_status, bool retry_crc_err)
{
struct mmc_host *host = card->host;
int err;
@ -502,6 +502,7 @@ static int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
return 0;
}
EXPORT_SYMBOL_GPL(mmc_poll_for_busy);
/**
* __mmc_switch - modify EXT_CSD register

2
drivers/mmc/core/mmc_ops.h
View file

@ -35,6 +35,8 @@ int mmc_can_ext_csd(struct mmc_card *card);
int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);
int mmc_switch_status(struct mmc_card *card);
int __mmc_switch_status(struct mmc_card *card, bool crc_err_fatal);
int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
bool send_status, bool retry_crc_err);
int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms, unsigned char timing,
bool use_busy_signal, bool send_status, bool retry_crc_err);