Commit d9bcbf34 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Chris Ball

mmc: fix rmmod race for hosts using card-detection polling

MMC hosts that poll for card detection by defining the MMC_CAP_NEEDS_POLL
flag have a race on rmmod, where the delayed work is cancelled without
waiting for completed polling. To prevent this a _sync version of the work
cancellation has to be used.
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: <stable@kernel.org>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent 35ac6f08
...@@ -1559,7 +1559,7 @@ void mmc_stop_host(struct mmc_host *host) ...@@ -1559,7 +1559,7 @@ void mmc_stop_host(struct mmc_host *host)
if (host->caps & MMC_CAP_DISABLE) if (host->caps & MMC_CAP_DISABLE)
cancel_delayed_work(&host->disable); cancel_delayed_work(&host->disable);
cancel_delayed_work(&host->detect); cancel_delayed_work_sync(&host->detect);
mmc_flush_scheduled_work(); mmc_flush_scheduled_work();
/* clear pm flags now and let card drivers set them as needed */ /* clear pm flags now and let card drivers set them as needed */
......
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