In virtio_fs_add_queues_sysfs(), the code incorrectly checks fs->mqs_kobj
after calling kobject_create_and_add(). Change the check to fsvq->kobj
(fs->mqs_kobj -> fsvq->kobj) to ensure the per-queue kobject is
successfully created.

Fixes: 87cbdc396a31 ("virtio_fs: add sysfs entries for queue information")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
---
 fs/fuse/virtio_fs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index 6bc7c97b017d..b2f6486fe1d5 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -373,7 +373,7 @@ static int virtio_fs_add_queues_sysfs(struct virtio_fs *fs)
 
 		sprintf(buff, "%d", i);
 		fsvq->kobj = kobject_create_and_add(buff, fs->mqs_kobj);
-		if (!fs->mqs_kobj) {
+		if (!fsvq->kobj) {
 			ret = -ENOMEM;
 			goto out_del;
 		}
-- 
2.50.1

On Mon, 27 Oct 2025 03:46:47 -0700, Alok Tiwari wrote:
> In virtio_fs_add_queues_sysfs(), the code incorrectly checks fs->mqs_kobj
> after calling kobject_create_and_add(). Change the check to fsvq->kobj
> (fs->mqs_kobj -> fsvq->kobj) to ensure the per-queue kobject is
> successfully created.
> 
> 

Applied to the vfs.fixes branch of the vfs/vfs.git tree.
Patches in the vfs.fixes branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs.fixes

[1/1] virtio-fs: fix incorrect check for fsvq->kobj
      https://git.kernel.org/vfs/vfs/c/a20432b6571d

On Mon, Oct 27, 2025 at 03:46:47AM -0700, Alok Tiwari wrote:
> In virtio_fs_add_queues_sysfs(), the code incorrectly checks fs->mqs_kobj
> after calling kobject_create_and_add(). Change the check to fsvq->kobj
> (fs->mqs_kobj -> fsvq->kobj) to ensure the per-queue kobject is
> successfully created.
> 
> Fixes: 87cbdc396a31 ("virtio_fs: add sysfs entries for queue information")
> Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
> ---
>  fs/fuse/virtio_fs.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>