mmc: core: Keep host claimed while invoking mmc_power_off|up()
As mmc_claim_host() invokes pm_runtime_get_sync() for the mmc host device, it's important that the host is kept claimed for *all* accesses to it via the host_ops callbacks. In some code paths for SDIO, particularly related to the PM support, mmc_power_off|up() is invoked without keeping the host claimed. Let's fix these. Moreover, mmc_start|stop_host() also invokes mmc_power_off|up() without claiming the host, let's fix these as well. Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org> Acked-by: NKishon Vijay Abraham I <kishon@ti.com>
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