'err' forgot to free in x86_cpu_class_check_missing_features error path.
Fix that.

Reported-by: Euler Robot <[email protected]>
Signed-off-by: Pan Nengyuan <[email protected]>
---
Cc: Paolo Bonzini <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Eduardo Habkost <[email protected]>
---
 target/i386/cpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 588f32e136..4678aac0b4 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -4872,6 +4872,7 @@ static void 
x86_cpu_class_check_missing_features(X86CPUClass *xcc,
         new->value = g_strdup("type");
         *next = new;
         next = &new->next;
+        error_free(err);
     }
 
     x86_cpu_filter_features(xc, false);
-- 
2.18.2


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