2021-01-12 11:20:00

by Cindy Lu

Subject: [PATCH v2] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call

In vhost_vdpa_set_config_call, the cb.private should be vhost_vdpa.
this cb.private will finally use in vhost_vdpa_config_cb as
vhost_vdpa. Fix this issue.

Signed-off-by: Cindy Lu <[email protected]>
---
drivers/vhost/vdpa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index ef688c8c0e0e..3fbb9c1f49da 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -319,7 +319,7 @@ static long vhost_vdpa_set_config_call(struct vhost_vdpa *v, u32 __user *argp)
struct eventfd_ctx *ctx;

cb.callback = vhost_vdpa_config_cb;
- cb.private = v->vdpa;
+ cb.private = v;
if (copy_from_user(&fd, argp, sizeof(fd)))
return -EFAULT;

--
2.21.3

2021-01-12 11:39:57

by Greg Kroah-Hartman

Subject: Re: [PATCH v2] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call

On Tue, Jan 12, 2021 at 01:32:27PM +0800, Cindy Lu wrote:
> In vhost_vdpa_set_config_call, the cb.private should be vhost_vdpa.
> this cb.private will finally use in vhost_vdpa_config_cb as
> vhost_vdpa. Fix this issue.
>
> Signed-off-by: Cindy Lu <[email protected]>
> ---
> drivers/vhost/vdpa.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>