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mshv: release mutex on region invalidation failure

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In the region invalidation failure path in
mshv_region_interval_invalidate(), the region mutex is not released. Fix
it by releasing the mutex in the failure path.

Signed-off-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com>
Fixes: b9a66cd5cc ("mshv: Add support for movable memory regions")
Acked-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
Reviewed-by: Roman Kisel <vdso@mailbox.org>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
This commit is contained in:
Anirudh Rayabharam (Microsoft)
2025-12-16 14:20:30 +00:00
committed by Wei Liu
parent 52f758edc9
commit 173d6f64f9
1 changed files with 3 additions and 1 deletions
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4
drivers/hv/mshv_regions.c
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@@ -511,7 +511,7 @@ static bool mshv_region_interval_invalidate(struct mmu_interval_notifier *mni,
ret = mshv_region_remap_pages(region, HV_MAP_GPA_NO_ACCESS,
page_offset, page_count);
if (ret)
goto out_fail;
goto out_unlock;
mshv_region_invalidate_pages(region, page_offset, page_count);
@@ -519,6 +519,8 @@ static bool mshv_region_interval_invalidate(struct mmu_interval_notifier *mni,
return true;
out_unlock:
mutex_unlock(&region->mutex);
out_fail:
WARN_ONCE(ret,
"Failed to invalidate region %#llx-%#llx (range %#lx-%#lx, event: %u, pages %#llx-%#llx, mm: %#llx): %d\n",