The mmc driver doesn't support event notifications, which means that check_disk_change is a no-op. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- drivers/mmc/core/block.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 4791c82f8f7c78..fa313b63413547 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -312,10 +312,7 @@ static int mmc_blk_open(struct block_device *bdev, fmode_t mode) mutex_lock(&block_mutex); if (md) { - if (md->usage == 2) - check_disk_change(bdev); ret = 0; - if ((mode & FMODE_WRITE) && md->read_only) { mmc_blk_put(md); ret = -EROFS; -- 2.26.2