diff options
| author | Jiasheng Jiang | 2022-11-26 09:25:58 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2022-12-31 13:32:25 +0100 |
| commit | 1b3f0b02486b553983c352442e20aded7458decd (patch) | |
| tree | 18b94e916854b62bcd96a9932a1623d7bf67f6dd | |
| parent | d87d565fec52e8c3b91b434eb4386e74ae26f8f0 (diff) | |
memstick/ms_block: Add check for alloc_ordered_workqueue
[ Upstream commit 4f431a047a5c8698ed4b67e2760cfbeb5fffb69d ]
As the alloc_ordered_workqueue may return NULL pointer, it should be better
to add check for the return value. Moreover, the msb->io_queue should be
freed if error occurs later.
Fixes: 0ab30494bc4f ("memstick: add support for legacy memorysticks")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20221126012558.34374-1-jiasheng@iscas.ac.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/memstick/core/ms_block.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index ba8414519515..04115cd92433 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -2116,6 +2116,11 @@ static int msb_init_disk(struct memstick_dev *card) dbg("Set total disk size to %lu sectors", capacity); msb->io_queue = alloc_ordered_workqueue("ms_block", WQ_MEM_RECLAIM); + if (!msb->io_queue) { + rc = -ENOMEM; + goto out_cleanup_disk; + } + INIT_WORK(&msb->io_work, msb_io_work); sg_init_table(msb->prealloc_sg, MS_BLOCK_MAX_SEGS+1); @@ -2125,10 +2130,12 @@ static int msb_init_disk(struct memstick_dev *card) msb_start(card); rc = device_add_disk(&card->dev, msb->disk, NULL); if (rc) - goto out_cleanup_disk; + goto out_destroy_workqueue; dbg("Disk added"); return 0; +out_destroy_workqueue: + destroy_workqueue(msb->io_queue); out_cleanup_disk: put_disk(msb->disk); out_free_tag_set: |