mmc: dw_mmc: Avoid hung state if GEN_CMD transfer fails

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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>

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Mårten Lindahl 2021-11-03 19:27:16 +01:00 • committed by Ulf Hansson

parent dfb654f188

commit 9f0d3cc238

1 changed files with 2 additions and 1 deletions

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drivers/mmc/host/dw_mmc.c

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