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| /openbmc/linux/drivers/mmc/host/ |
| H A D | mtk-sd.c | 0354ca6e Fri Dec 18 01:16:11 CST 2020 Chaotian Jing <chaotian.jing@mediatek.com> mmc: mediatek: fix race condition between msdc_request_timeout and irq
when get request SW timeout, if CMD/DAT xfer done irq coming right now,
then there is race between the msdc_request_timeout work and irq handler,
and the host->cmd and host->data may set to NULL in irq handler. also,
current flow ensure that only one path can go to msdc_request_done(), so
no need check the return value of cancel_delayed_work().
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Link: https://lore.kernel.org/r/20201218071611.12276-1-chaotian.jing@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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