KVM-async_pf: Delete an unnecessary check before the function call "kmem_cache_destroy"

The kmem_cache_destroy() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 77d42be6970ed88cd5812ecea855db267a333468..35315992245600a418874fd371e641ef336a0a22 100644 (file)
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -57,8 +57,7 @@ int kvm_async_pf_init(void)
 
 void kvm_async_pf_deinit(void)
 {
-       if (async_pf_cache)
-               kmem_cache_destroy(async_pf_cache);
+       kmem_cache_destroy(async_pf_cache);
        async_pf_cache = NULL;
 }