[PATCH] KVM: arm64: fix returnvar.cocci warnings

[kernel test robot]

From: kernel test robot <lkp@xxxxxxxxx>

arch/arm64/kvm/sdei.c:346:15-18: Unneeded variable: "ret". Return "SDEI_SUCCESS" on line 352


 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

CC: Gavin Shan <gshan@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
---

url:    https://github.com/intel-lab-lkp/linux/commits/Gavin-Shan/Support-SDEI-Virtualization/20220403-234350
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git be2d3ecedd9911fbfd7e55cc9ceac5f8b79ae4cf
:::::: branch date: 19 hours ago
:::::: commit date: 19 hours ago

 arch/arm64/kvm/sdei.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/arch/arm64/kvm/sdei.c
+++ b/arch/arm64/kvm/sdei.c
@@ -343,13 +343,12 @@ out:
 static unsigned long hypercall_mask(struct kvm_vcpu *vcpu, bool mask)
 {
 	struct kvm_sdei_vcpu *vsdei = vcpu->arch.sdei;
-	unsigned long ret = SDEI_SUCCESS;
 
 	spin_lock(&vsdei->lock);
 	vsdei->masked = mask ? 1 : 0;
 	spin_unlock(&vsdei->lock);
 
-	return ret;
+	return SDEI_SUCCESS;
 }
 
 int kvm_sdei_call(struct kvm_vcpu *vcpu)