linux-kernel - [PATCH v1 1/1] s390/kvm: initialize uninitialized flags variable

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Message-ID: <20241030161906.85476-1-imbrenda@linux.ibm.com>
Date: Wed, 30 Oct 2024 17:19:06 +0100
From: Claudio Imbrenda <imbrenda@...ux.ibm.com>
To: linux-kernel@...r.kernel.org
Cc: borntraeger@...ibm.com, nsg@...ux.ibm.com, nrb@...ux.ibm.com,
        frankja@...ux.ibm.com, seiden@...ux.ibm.com, hca@...ux.ibm.com,
        agordeev@...ux.ibm.com, gor@...ux.ibm.com,
        gerald.schaefer@...ux.ibm.com, kvm@...r.kernel.org,
        linux-s390@...r.kernel.org
Subject: [PATCH v1 1/1] s390/kvm: initialize uninitialized flags variable

The flags variable was being used uninitialized.
Initialize it to 0 as expected.

For some reason neither gcc nor clang reported a warning.

Fixes: ce2b276ebe51 ("s390/mm/fault: Handle guest-related program interrupts in KVM")
Reported-by: Janosch Frank <frankja@...ux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@...ux.ibm.com>
---
 arch/s390/kvm/kvm-s390.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index a5750c14bb4d..8b3afda99397 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -4729,8 +4729,8 @@ static int vcpu_post_run_addressing_exception(struct kvm_vcpu *vcpu)
 
 static int vcpu_post_run_handle_fault(struct kvm_vcpu *vcpu)
 {
+	unsigned int flags = 0;
 	unsigned long gaddr;
-	unsigned int flags;
 	int rc = 0;
 
 	gaddr = current->thread.gmap_teid.addr * PAGE_SIZE;
-- 
2.47.0