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SubjectRe: [PATCH] driver: uio: fix possible memory leak in uio_open
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On 2019/1/3 0:26, liujian wrote:
> Fixes: 57c5f4df0a5a ("uio: fix crash after the device is unregistered")
> Signed-off-by: liujian <liujian56@huawei.com>
> ---
> drivers/uio/uio.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
> index 5c10fc7..bde7d7a 100644
> --- a/drivers/uio/uio.c
> +++ b/drivers/uio/uio.c
> @@ -496,7 +496,7 @@ static int uio_open(struct inode *inode, struct file *filep)
> if (!idev->info) {
> mutex_unlock(&idev->info_lock);
> ret = -EINVAL;
> - goto err_alloc_listener;
> + goto err_infoopen;
> }
>
> if (idev->info && idev->info->open)
> @@ -508,6 +508,7 @@ static int uio_open(struct inode *inode, struct file *filep)
> return 0;
>
> err_infoopen:

Maybe we should rename the "err_infoopen" to something like
"err_idev_info"...

Thanks.

BRs

> + filep->private_data = NULL;
> kfree(listener);
>
> err_alloc_listener:


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