[PATCH 5.13 073/104] KVM: selftests: Fix missing break in dirty_log_perf_test arg parsing

[Greg Kroah-Hartman]

From: David Matlack <dmatlack@xxxxxxxxxx>

[ Upstream commit 15b7b737deb30e1f8f116a08e723173b55ebd2f3 ]

There is a missing break statement which causes a fallthrough to the
next statement where optarg will be null and a segmentation fault will
be generated.

Fixes: 9e965bb75aae ("KVM: selftests: Add backing src parameter to dirty_log_perf_test")
Reviewed-by: Ben Gardon <bgardon@xxxxxxxxxx>
Signed-off-by: David Matlack <dmatlack@xxxxxxxxxx>
Message-Id: <20210713220957.3493520-6-dmatlack@xxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/testing/selftests/kvm/dirty_log_perf_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
index 04a2641261be..80cbd3a748c0 100644
--- a/tools/testing/selftests/kvm/dirty_log_perf_test.c
+++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
@@ -312,6 +312,7 @@ int main(int argc, char *argv[])
 			break;
 		case 'o':
 			p.partition_vcpu_memory_access = false;
+			break;
 		case 's':
 			p.backing_src = parse_backing_src_type(optarg);
 			break;
-- 
2.30.2