Messages in this thread Patch in this message |  | | From | Cai Xinchen <> | Subject | [PATCH] rapidio: devices: Fix missing put_device in mport_cdev_open | Date | Sat, 3 Dec 2022 08:57:21 +0000 |
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When kfifo_alloc fails, the refcount of chdev->dev is left incremental. We should use put_device(&chdev->dev) to decrease the ref count of chdev->dev to avoid refcount leak.
Fixes: e8de370188d0 ("rapidio: add mport char device driver") Signed-off-by: Cai Xinchen <caixinchen1@huawei.com> --- drivers/rapidio/devices/rio_mport_cdev.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index fecf523f36d8..43db495f1986 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -1912,6 +1912,7 @@ static int mport_cdev_open(struct inode *inode, struct file *filp) sizeof(struct rio_event) * MPORT_EVENT_DEPTH, GFP_KERNEL); if (ret < 0) { + put_device(&chdev->dev); dev_err(&chdev->dev, DRV_NAME ": kfifo_alloc failed\n"); ret = -ENOMEM; goto err_fifo; -- 2.17.1
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