diff options
| author | Jakub Kicinski <[email protected]> | 2023-07-27 15:21:46 -0700 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2023-07-27 15:22:46 -0700 |
| commit | 014acf26685cfcfae37c9e98b83c622c0b01cf19 (patch) | |
| tree | 85ce0217698aef25875fdc62f2332bbbbc1bff2c /arch/s390/kvm/pv.c | |
| parent | 9d0cd5d25f7d45bce01bbb3193b54ac24b3a60f3 (diff) | |
| parent | 57012c57536f8814dec92e74197ee96c3498d24e (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'arch/s390/kvm/pv.c')
| -rw-r--r-- | arch/s390/kvm/pv.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c index 2f34c7c3c5ab..bf1fdc7bf89e 100644 --- a/arch/s390/kvm/pv.c +++ b/arch/s390/kvm/pv.c @@ -411,8 +411,12 @@ int kvm_s390_pv_deinit_cleanup_all(struct kvm *kvm, u16 *rc, u16 *rrc) u16 _rc, _rrc; int cc = 0; - /* Make sure the counter does not reach 0 before calling s390_uv_destroy_range */ - atomic_inc(&kvm->mm->context.protected_count); + /* + * Nothing to do if the counter was already 0. Otherwise make sure + * the counter does not reach 0 before calling s390_uv_destroy_range. + */ + if (!atomic_inc_not_zero(&kvm->mm->context.protected_count)) + return 0; *rc = 1; /* If the current VM is protected, destroy it */ |