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Logan Gunthorpe authored
The mddev->lock spinlock doesn't protect against the removal of conf->log in r5l_exit_log() so conf->log may be freed before it is used. To fix this, take the mddev_lock() insteaad of the mddev->lock spinlock. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Song Liu <song@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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