This is a note to let you know that I've just added the patch titled 9p/trans_virtio: Remove sysfs file on probe failure to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: 9p-trans_virtio-remove-sysfs-file-on-probe-failure.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From f997ea3b7afc108eb9761f321b57de2d089c7c48 Mon Sep 17 00:00:00 2001 From: Xie Yongji <xieyongji@xxxxxxxxxxxxx> Date: Mon, 17 May 2021 16:35:57 +0800 Subject: 9p/trans_virtio: Remove sysfs file on probe failure From: Xie Yongji <xieyongji@xxxxxxxxxxxxx> commit f997ea3b7afc108eb9761f321b57de2d089c7c48 upstream. This ensures we don't leak the sysfs file if we failed to allocate chan->vc_wq during probe. Link: http://lkml.kernel.org/r/20210517083557.172-1-xieyongji@xxxxxxxxxxxxx Fixes: 86c8437383ac ("net/9p: Add sysfs mount_tag file for virtio 9P device") Signed-off-by: Xie Yongji <xieyongji@xxxxxxxxxxxxx> Signed-off-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/9p/trans_virtio.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -610,7 +610,7 @@ static int p9_virtio_probe(struct virtio chan->vc_wq = kmalloc(sizeof(wait_queue_head_t), GFP_KERNEL); if (!chan->vc_wq) { err = -ENOMEM; - goto out_free_tag; + goto out_remove_file; } init_waitqueue_head(chan->vc_wq); chan->ring_bufs_avail = 1; @@ -628,6 +628,8 @@ static int p9_virtio_probe(struct virtio return 0; +out_remove_file: + sysfs_remove_file(&vdev->dev.kobj, &dev_attr_mount_tag.attr); out_free_tag: kfree(tag); out_free_vq: Patches currently in stable-queue which might be from xieyongji@xxxxxxxxxxxxx are queue-5.14/9p-trans_virtio-remove-sysfs-file-on-probe-failure.patch