diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2023-04-03 14:10:19 +0300 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2023-04-06 23:44:58 +0300 |
| commit | fca1fdd2b0a6fcd491ec520afac80bc72b4c811e (patch) | |
| tree | c312250ce3910a2dfdfc7e94893179a763368450 | |
| parent | dfd7a1569e25996575a24725b64f73162155bcd6 (diff) | |
| download | linux-fca1fdd2b0a6fcd491ec520afac80bc72b4c811e.tar.xz | |
x86/mm/iommu/sva: Fix error code for LAM enabling failure due to SVA
Normally, LAM and SVA are mutually exclusive. LAM enabling will fail if
SVA is already in use.
Correct error code for the failure. EINTR is nonsensical there.
Fixes: 23e5d9ec2bab ("x86/mm/iommu/sva: Make LAM and SVA mutually exclusive")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Link: https://lore.kernel.org/all/CACT4Y+YfqSMsZArhh25TESmG-U4jO5Hjphz87wKSnTiaw2Wrfw@mail.gmail.com
Link: https://lore.kernel.org/all/20230403111020.3136-2-kirill.shutemov%40linux.intel.com
| -rw-r--r-- | arch/x86/kernel/process_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index b46924c9e46d..bc2ac5652f88 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -758,7 +758,7 @@ static int prctl_enable_tagged_addr(struct mm_struct *mm, unsigned long nr_bits) if (mm_valid_pasid(mm) && !test_bit(MM_CONTEXT_FORCE_TAGGED_SVA, &mm->context.flags)) - return -EINTR; + return -EINVAL; if (mmap_write_lock_killable(mm)) return -EINTR; |