Hello! This is an experimental automated report about issues detected by Coverity from a scan of next-20200413 as part of the linux-next weekly scan project: https://scan.coverity.com/projects/linux-next-weekly-scan You're getting this email because you were associated with the identified lines of code (noted below) that were touched by commits: Thu Mar 26 22:01:23 2020 +0800 4c8cf31885f6 ("vhost: introduce vDPA-based backend") Coverity reported the following: *** CID 1461662: Control flow issues (DEADCODE) /drivers/vhost/vdpa.c: 682 in vhost_vdpa_open() 676 struct vhost_dev *dev; 677 struct vhost_virtqueue **vqs; 678 int nvqs, i, r, opened; 679 680 v = container_of(inode->i_cdev, struct vhost_vdpa, cdev); 681 if (!v) vvv CID 1461662: Control flow issues (DEADCODE) vvv Execution cannot reach this statement: "return -19;". 682 return -ENODEV; 683 684 opened = atomic_cmpxchg(&v->opened, 0, 1); 685 if (opened) 686 return -EBUSY; 687 If this is a false positive, please let us know so we can mark it as such, or teach the Coverity rules to be smarter. If not, please make sure fixes get into linux-next. :) For patches fixing this, please include these lines (but double-check the "Fixes" first): Reported-by: coverity-bot <keescook+coverity-bot@xxxxxxxxxxxx> Addresses-Coverity-ID: 1461662 ("Control flow issues") Fixes: 4c8cf31885f6 ("vhost: introduce vDPA-based backend") Thanks for your attention! -- Coverity-bot
