mmc: hsq: Fix data stomping during mmc recovery
commit
e7afa79a3b35a27a046a2139f8b20bd6b98155c2 upstream.
The block device uses multiple queues to access emmc. There will be up to 3
requests in the hsq of the host. The current code will check whether there
is a request doing recovery before entering the queue, but it will not check
whether there is a request when the lock is issued. The request is in recovery
mode. If there is a request in recovery, then a read and write request is
initiated at this time, and the conflict between the request and the recovery
request will cause the data to be trampled.
Signed-off-by: Wenchao Chen <wenchao.chen@unisoc.com>
Fixes: 511ce378e16f ("mmc: Add MMC host software queue support")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220916090506.10662-1-wenchao.chen666@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>