mmc: host: Return an error when ->enable_sdio_irq() ops is missing

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Even if the current WARN() notifies the user that something is severely
wrong, we can still end up in a PANIC() when trying to invoke the missing
->enable_sdio_irq() ops. Therefore, let's also return an error code and
prevent the host from being added.

While at it, move the code into a separate function to prepare for
subsequent changes and for further host caps validations.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20220303165142.129745-1-ulf.hansson@linaro.org

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Ulf Hansson 2022-03-03 17:51:42 +01:00

parent 3b6c472822

commit d6c9219ca1

1 changed files with 13 additions and 2 deletions

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drivers/mmc/core/host.c

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