On Tue, Feb 22, 2022 at 08:30:17AM +0300, Dan Carpenter wrote:
Hi Stefano, url: https://github.com/0day-ci/linux/commits/Stefano-Garzarella/vhost-vsock-don-t-check-owner-in-vhost_vsock_stop-while-releasing/20220221-195038 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next config: x86_64-randconfig-m031-20220221 (https://download.01.org/0day-ci/archive/20220222/202202220707.AM3rKUcP-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: drivers/vhost/vsock.c:655 vhost_vsock_stop() error: uninitialized symbol 'ret'. vim +/ret +655 drivers/vhost/vsock.c 3ace84c91bfcde Stefano Garzarella 2022-02-21 632 static int vhost_vsock_stop(struct vhost_vsock *vsock, bool check_owner) 433fc58e6bf2c8 Asias He 2016-07-28 633 { 433fc58e6bf2c8 Asias He 2016-07-28 634 size_t i; 433fc58e6bf2c8 Asias He 2016-07-28 635 int ret; 433fc58e6bf2c8 Asias He 2016-07-28 636 433fc58e6bf2c8 Asias He 2016-07-28 637 mutex_lock(&vsock->dev.mutex); 433fc58e6bf2c8 Asias He 2016-07-28 638 3ace84c91bfcde Stefano Garzarella 2022-02-21 639 if (check_owner) { 433fc58e6bf2c8 Asias He 2016-07-28 640 ret = vhost_dev_check_owner(&vsock->dev); 433fc58e6bf2c8 Asias He 2016-07-28 641 if (ret) 433fc58e6bf2c8 Asias He 2016-07-28 642 goto err; 3ace84c91bfcde Stefano Garzarella 2022-02-21 643 } "ret" not initialized on else path.
Oooops, I was testing with vhost_vsock_dev_release() where we don't check the ret value, but of course we need to initialize it to 0 for the vhost_vsock_dev_ioctl() use case.
I'll fix in the v2. Thanks for the report, Stefano
