diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-05-19 04:50:26 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-05-19 09:51:02 +0300 |
| commit | 1a590a1c8bf46bf80ea12b657ca44c345531ac80 (patch) | |
| tree | f125a4f935df8b6c8d6a55f44eb879754612abdd /drivers/iommu | |
| parent | 382d91fc0f4f1b13f8a0dcbf7145f4f175b71a18 (diff) | |
| download | linux-1a590a1c8bf46bf80ea12b657ca44c345531ac80.tar.xz | |
iommu/vt-d: Check for allocation failure in aux_detach_device()
In current kernels small allocations never fail, but checking for
allocation failure is the correct thing to do.
Fixes: 18abda7a2d55 ("iommu/vt-d: Fix general protection fault in aux_detach_device()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/YJuobKuSn81dOPLd@mwanda
Link: https://lore.kernel.org/r/20210519015027.108468-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 708f430af1c4..9a7b79b5af18 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4606,6 +4606,8 @@ static int auxiliary_link_device(struct dmar_domain *domain, if (!sinfo) { sinfo = kzalloc(sizeof(*sinfo), GFP_ATOMIC); + if (!sinfo) + return -ENOMEM; sinfo->domain = domain; sinfo->pdev = dev; list_add(&sinfo->link_phys, &info->subdevices); |