* [luxis1999-iommufd:iommufd-v5.17-rc6 24/28] drivers/iommu/iommufd/vfio_compat.c:503 vfio_group_unset_iommufd() warn: inconsistent returns '&ictx->vfio_compat'.
@ 2022-04-20 7:30 ` Dan Carpenter
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-04-15 14:52 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 2597 bytes --]
CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
TO: Liu Yi L <yi.l.liu@intel.com>
tree: https://github.com/luxis1999/iommufd iommufd-v5.17-rc6
head: 71a58479a11e89a480ebc59ed5163440d3e2772c
commit: a3273f1f88fe60e784d6e9916269a7d70fc6daf4 [24/28] iommufd: Add vfio_group_set/unset_iommufd helpers
:::::: branch date: 2 days ago
:::::: commit date: 4 weeks ago
config: arm64-randconfig-m031-20220415 (https://download.01.org/0day-ci/archive/20220415/202204152248.K66L5JbF-lkp(a)intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/iommu/iommufd/vfio_compat.c:503 vfio_group_unset_iommufd() warn: inconsistent returns '&ictx->vfio_compat'.
vim +503 drivers/iommu/iommufd/vfio_compat.c
a3273f1f88fe60 Nicolin Chen 2022-01-31 481
a3273f1f88fe60 Nicolin Chen 2022-01-31 482 void vfio_group_unset_iommufd(void *iommufd, struct list_head *device_list)
a3273f1f88fe60 Nicolin Chen 2022-01-31 483 {
a3273f1f88fe60 Nicolin Chen 2022-01-31 484 struct iommufd_ctx *ictx = (struct iommufd_ctx *)iommufd;
a3273f1f88fe60 Nicolin Chen 2022-01-31 485 struct iommufd_ioas *ioas;
a3273f1f88fe60 Nicolin Chen 2022-01-31 486 struct vfio_device *device;
a3273f1f88fe60 Nicolin Chen 2022-01-31 487 unsigned int ioas_id;
a3273f1f88fe60 Nicolin Chen 2022-01-31 488
a3273f1f88fe60 Nicolin Chen 2022-01-31 489 if (!ictx)
a3273f1f88fe60 Nicolin Chen 2022-01-31 490 return;
a3273f1f88fe60 Nicolin Chen 2022-01-31 491 mutex_lock(&ictx->vfio_compat);
a3273f1f88fe60 Nicolin Chen 2022-01-31 492 ioas = get_compat_ioas(ictx);
a3273f1f88fe60 Nicolin Chen 2022-01-31 493 if (IS_ERR(ioas))
a3273f1f88fe60 Nicolin Chen 2022-01-31 494 return;
a3273f1f88fe60 Nicolin Chen 2022-01-31 495
a3273f1f88fe60 Nicolin Chen 2022-01-31 496 ioas_id = ioas->obj.id;
a3273f1f88fe60 Nicolin Chen 2022-01-31 497 iommufd_put_object(&ioas->obj);
a3273f1f88fe60 Nicolin Chen 2022-01-31 498
a3273f1f88fe60 Nicolin Chen 2022-01-31 499 vfio_device_detach_unbind(ictx, ioas_id, device, device_list);
a3273f1f88fe60 Nicolin Chen 2022-01-31 500 if (--ictx->groups == 0)
a3273f1f88fe60 Nicolin Chen 2022-01-31 501 iommufd_ioas_destroy(&ioas->obj);
a3273f1f88fe60 Nicolin Chen 2022-01-31 502 mutex_unlock(&ictx->vfio_compat);
a3273f1f88fe60 Nicolin Chen 2022-01-31 @503 fput(ictx->filp);
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 2+ messages in thread
* [luxis1999-iommufd:iommufd-v5.17-rc6 24/28] drivers/iommu/iommufd/vfio_compat.c:503 vfio_group_unset_iommufd() warn: inconsistent returns '&ictx->vfio_compat'.
@ 2022-04-20 7:30 ` Dan Carpenter
0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2022-04-20 7:30 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2451 bytes --]
tree: https://github.com/luxis1999/iommufd iommufd-v5.17-rc6
head: 71a58479a11e89a480ebc59ed5163440d3e2772c
commit: a3273f1f88fe60e784d6e9916269a7d70fc6daf4 [24/28] iommufd: Add vfio_group_set/unset_iommufd helpers
config: arm64-randconfig-m031-20220415 (https://download.01.org/0day-ci/archive/20220415/202204152248.K66L5JbF-lkp(a)intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.2.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/iommu/iommufd/vfio_compat.c:503 vfio_group_unset_iommufd() warn: inconsistent returns '&ictx->vfio_compat'.
vim +503 drivers/iommu/iommufd/vfio_compat.c
a3273f1f88fe60 Nicolin Chen 2022-01-31 482 void vfio_group_unset_iommufd(void *iommufd, struct list_head *device_list)
a3273f1f88fe60 Nicolin Chen 2022-01-31 483 {
a3273f1f88fe60 Nicolin Chen 2022-01-31 484 struct iommufd_ctx *ictx = (struct iommufd_ctx *)iommufd;
a3273f1f88fe60 Nicolin Chen 2022-01-31 485 struct iommufd_ioas *ioas;
a3273f1f88fe60 Nicolin Chen 2022-01-31 486 struct vfio_device *device;
a3273f1f88fe60 Nicolin Chen 2022-01-31 487 unsigned int ioas_id;
a3273f1f88fe60 Nicolin Chen 2022-01-31 488
a3273f1f88fe60 Nicolin Chen 2022-01-31 489 if (!ictx)
a3273f1f88fe60 Nicolin Chen 2022-01-31 490 return;
a3273f1f88fe60 Nicolin Chen 2022-01-31 491 mutex_lock(&ictx->vfio_compat);
a3273f1f88fe60 Nicolin Chen 2022-01-31 492 ioas = get_compat_ioas(ictx);
a3273f1f88fe60 Nicolin Chen 2022-01-31 493 if (IS_ERR(ioas))
a3273f1f88fe60 Nicolin Chen 2022-01-31 494 return;
mutex_unlock(&ictx->vfio_compat); before return.
a3273f1f88fe60 Nicolin Chen 2022-01-31 495
a3273f1f88fe60 Nicolin Chen 2022-01-31 496 ioas_id = ioas->obj.id;
a3273f1f88fe60 Nicolin Chen 2022-01-31 497 iommufd_put_object(&ioas->obj);
a3273f1f88fe60 Nicolin Chen 2022-01-31 498
a3273f1f88fe60 Nicolin Chen 2022-01-31 499 vfio_device_detach_unbind(ictx, ioas_id, device, device_list);
a3273f1f88fe60 Nicolin Chen 2022-01-31 500 if (--ictx->groups == 0)
a3273f1f88fe60 Nicolin Chen 2022-01-31 501 iommufd_ioas_destroy(&ioas->obj);
a3273f1f88fe60 Nicolin Chen 2022-01-31 502 mutex_unlock(&ictx->vfio_compat);
a3273f1f88fe60 Nicolin Chen 2022-01-31 @503 fput(ictx->filp);
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-04-20 7:30 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
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2022-04-15 14:52 [luxis1999-iommufd:iommufd-v5.17-rc6 24/28] drivers/iommu/iommufd/vfio_compat.c:503 vfio_group_unset_iommufd() warn: inconsistent returns '&ictx->vfio_compat' kernel test robot
2022-04-20 7:30 ` Dan Carpenter
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