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| author | Joao Martins <joao.m.martins@oracle.com> | 2020-09-10 18:16:21 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-09-18 10:35:11 +0200 |
| commit | 14c4acc5ed22c21f9821103be7c48efdf9763584 (patch) | |
| tree | 58c74f6390637a798e646b74191c7af59ea70878 /scripts/bpf_helpers_doc.py | |
| parent | 856deb866d16e29bd65952e0289066f6078af773 (diff) | |
iommu/amd: Fix potential @entry null deref
After commit 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after
programming IRTE"), smatch warns:
drivers/iommu/amd/iommu.c:3870 amd_iommu_deactivate_guest_mode()
warn: variable dereferenced before check 'entry' (see line 3867)
Fix this by moving the @valid assignment to after @entry has been checked
for NULL.
Fixes: 26e495f34107 ("iommu/amd: Restore IRTE.RemapEn bit after programming IRTE")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20200910171621.12879-1-joao.m.martins@oracle.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
0 files changed, 0 insertions, 0 deletions