diff options
| author | Xiao Yang <ice_yangxiao@163.com> | 2024-09-09 21:56:21 +0900 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-17 01:07:00 -0700 |
| commit | 659c55ef981bb63355a65ffc3b3b5cad562b806a (patch) | |
| tree | 36faeb3f2c8e663ffea23b5e3c569751c6be27c7 /drivers | |
| parent | f2c5101be43677c227974912a043da29a62743ef (diff) | |
mm/vma: return the exact errno in vms_gather_munmap_vmas()
__split_vma() and mas_store_gfp() returns several types of errno on
failure so don't ignore them in vms_gather_munmap_vmas(). For example,
__split_vma() returns -EINVAL when an unaligned huge page is unmapped.
This issue is reproduced by ltp memfd_create03 test.
Don't initialise the error variable and assign it when a failure actually
occurs.
[akpm@linux-foundation.org: fix whitespace, per Liam]
Link: https://lkml.kernel.org/r/20240909125621.1994-1-ice_yangxiao@163.com
Fixes: 6898c9039bc8 ("mm/vma: extract the gathering of vmas from do_vmi_align_munmap()")
Signed-off-by: Xiao Yang <ice_yangxiao@163.com>
Suggested-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202409081536.d283a0fb-oliver.sang@intel.com
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions