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authorChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>2020-10-06 16:36:47 -0700
committerChristoph Hellwig <hch@lst.de>2020-10-07 07:55:40 +0200
commit4bab69093044ca81f394bd0780be1b71c5a4d308 (patch)
tree890428417257ef8a9107a860c2a8af5c8d6c7982 /drivers/nvme
parent6d53a9fe5a1983490bc14b3a64d49fabb4ccc651 (diff)
downloadlinux-4bab69093044ca81f394bd0780be1b71c5a4d308.tar.bz2
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>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c4
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;