diff options
| author |   Christoph Hellwig <hch@lst.de> | 2022-02-15 10:45:12 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2022-02-16 19:44:24 -0700 |
| commit | 6dab421bfe06a59bf8f212a72e34673e8acf2018 (patch) | |
| tree | 7ef99f93b46f04c14d73a0e224095133d9b08af6 /drivers/memstick/core | |
| parent | memstick/ms_block: simplify refcounting (diff) | |
| download | linux-dev-6dab421bfe06a59bf8f212a72e34673e8acf2018.tar.xz linux-dev-6dab421bfe06a59bf8f212a72e34673e8acf2018.zip | |
memstick/mspro_block: fix handling of read-only devices
Use set_disk_ro to propagate the read-only state to the block layer
instead of checking for it in ->open and leaking a reference in case
of a read-only device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220215094514.3828912-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/memstick/core')
| -rw-r--r-- | drivers/memstick/core/mspro_block.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index c0450397b673..7ea312f0840e 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -186,13 +186,8 @@ static int mspro_block_bd_open(struct block_device *bdev, fmode_t mode) mutex_lock(&mspro_block_disk_lock); - if (msb && msb->card) { + if (msb && msb->card) msb->usage_count++; - if ((mode & FMODE_WRITE) && msb->read_only) - rc = -EROFS; - else - rc = 0; - } mutex_unlock(&mspro_block_disk_lock); @@ -1239,6 +1234,9 @@ static int mspro_block_init_disk(struct memstick_dev *card) set_capacity(msb->disk, capacity); dev_dbg(&card->dev, "capacity set %ld\n", capacity); + if (msb->read_only) + set_disk_ro(msb->disk, true); + rc = device_add_disk(&card->dev, msb->disk, NULL); if (rc) goto out_cleanup_disk; |