diff options
| author | Wan Jiabing | 2022-05-17 10:34:41 +0800 |
|---|---|---|
| committer | Alex Williamson | 2022-05-17 13:07:09 -0600 |
| commit | 6b17ca8e5e7a7b10689867dff5e22d7da368ba76 (patch) | |
| tree | 27035e28069c94b251a59ea55fd5fb3019ec7ac4 /mm/Kconfig | |
| parent | 1c05bb947f6464756174830b778aabf8f9d6ed0e (diff) | |
kvm/vfio: Fix potential deadlock problem in vfio
Fix following coccicheck warning:
./virt/kvm/vfio.c:258:1-7: preceding lock on line 236
If kvm_vfio_file_iommu_group() failed, code would goto err_fdput with
mutex_lock acquired and then return ret. It might cause potential
deadlock. Move mutex_unlock bellow err_fdput tag to fix it.
Fixes: d55d9e7a45721 ("kvm/vfio: Store the struct file in the kvm_vfio_group")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20220517023441.4258-1-wanjiabing@vivo.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'mm/Kconfig')
0 files changed, 0 insertions, 0 deletions