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| author | Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> | 2020-10-07 02:36:47 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-10-07 08:55:40 +0300 |
| commit | 4bab69093044ca81f394bd0780be1b71c5a4d308 (patch) | |
| tree | 890428417257ef8a9107a860c2a8af5c8d6c7982 | |
| parent | 6d53a9fe5a1983490bc14b3a64d49fabb4ccc651 (diff) | |
| download | linux-4bab69093044ca81f394bd0780be1b71c5a4d308.tar.xz | |
nvme-core: put ctrl ref when module ref get fail
When try_module_get() fails in the nvme_dev_open() it returns without
releasing the ctrl reference which was taken earlier.
Put the ctrl reference which is taken before calling the
try_module_get() in the error return code path.
Fixes: 52a3974feb1a "nvme-core: get/put ctrl and transport module in nvme_dev_open/release()"
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | drivers/nvme/host/core.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 53c93836c7c6..ca516d68f14f 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3265,8 +3265,10 @@ static int nvme_dev_open(struct inode *inode, struct file *file) } nvme_get_ctrl(ctrl); - if (!try_module_get(ctrl->ops->module)) + if (!try_module_get(ctrl->ops->module)) { + nvme_put_ctrl(ctrl); return -EINVAL; + } file->private_data = ctrl; return 0; |