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/linux/drivers/mmc/host/ |
H A D | dw_mmc.c | diff 26391e49d5b0f0c33eb4b28a312d2ecc094d7489 Wed Aug 25 13:42:13 CEST 2021 Vincent Whitchurch <vincent.whitchurch@axis.com> mmc: dw_mmc: Only inject fault before done/error
The fault injection function can set EVENT_DATA_ERROR but skip the setting of ->data_status to an error status if it hits just after a data over interrupt. This confuses the tasklet which can later end up triggering the WARN_ON(host->cmd || ..) in dw_mci_request_end() since dw_mci_data_complete() would return success.
Prevent the fault injection function from doing this since this is not a real case, and ensure that the fault injection doesn't race with a real error either.
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Fixes: 2b8ac062f337 ("mmc: dw_mmc: Add data CRC error injection") Link: https://lore.kernel.org/r/20210825114213.7429-1-vincent.whitchurch@axis.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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