If misc_cg_set_capacity() fails for some reason then we have
a memleak for sev_reclaim_asid_bitmap/sev_asid_bitmap. It's
not a case right now, because misc_cg_set_capacity() just can't
fail and check inside it is always successful.
But let's fix that for code consistency.
Cc: Sean Christopherson <seanjc@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Stéphane Graber <stgraber@xxxxxxxxxx>
Cc: kvm@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@xxxxxxxxxxxxx>
---
arch/x86/kvm/svm/sev.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 69ae5e1b3120..cc832a8d1bca 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -2216,8 +2216,13 @@ void __init sev_hardware_setup(void)
}
sev_asid_count = max_sev_asid - min_sev_asid + 1;
- if (misc_cg_set_capacity(MISC_CG_RES_SEV, sev_asid_count))
+ if (misc_cg_set_capacity(MISC_CG_RES_SEV, sev_asid_count)) {
+ bitmap_free(sev_reclaim_asid_bitmap);
+ sev_reclaim_asid_bitmap = NULL;
+ bitmap_free(sev_asid_bitmap);
+ sev_asid_bitmap = NULL;
goto out;
+ }
pr_info("SEV supported: %u ASIDs\n", sev_asid_count);
sev_supported = true;
--
2.34.1
