From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Tue, 14 Jun 2022 13:34:58 +0000 (+0800)
Subject: x86: kvm: remove NULL check before kfree
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e20918f6d11253d62b110e8d16b17cc9bf82d832;p=linux.git

x86: kvm: remove NULL check before kfree

kfree can handle NULL pointer as its argument.
According to coccinelle isnullfree check, remove NULL check
before kfree operation.

Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Message-Id: <20220614133458.147314-1-dzm91@hust.edu.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 1a3658f7e6d99..d4e48b4a438b2 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -236,8 +236,7 @@ again:
 	raw_spin_unlock(&b->lock);
 
 	/* A dummy token might be allocated and ultimately not used.  */
-	if (dummy)
-		kfree(dummy);
+	kfree(dummy);
 }
 EXPORT_SYMBOL_GPL(kvm_async_pf_task_wake);