Re: [PATCH 1/1] vhost_task: Fix vhost_task_create return value

From: Stefano Garzarella
Date: Thu Mar 23 2023 - 04:38:22 EST


On Wed, Mar 22, 2023 at 01:56:05PM -0500, Mike Christie wrote:
vhost_task_create is supposed to return the vhost_task or NULL on
failure. This fixes it to return the correct value when the allocation
of the struct fails.

Fixes: 77feab3c4156 ("vhost_task: Allow vhost layer to use copy_process") # mainline only
Reported-by: syzbot+6b27b2d2aba1c80cc13b@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Mike Christie <michael.christie@xxxxxxxxxx>
---
kernel/vhost_task.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>


diff --git a/kernel/vhost_task.c b/kernel/vhost_task.c
index 4b8aff160640..b7cbd66f889e 100644
--- a/kernel/vhost_task.c
+++ b/kernel/vhost_task.c
@@ -88,7 +88,7 @@ struct vhost_task *vhost_task_create(int (*fn)(void *), void *arg,

vtsk = kzalloc(sizeof(*vtsk), GFP_KERNEL);
if (!vtsk)
- return ERR_PTR(-ENOMEM);
+ return NULL;
init_completion(&vtsk->exited);
vtsk->data = arg;
vtsk->fn = fn;
--
2.25.1