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b=Nxogg97HZipem/6DHIOqkhu7XrLDzKJnRelyF8ESOSZrO/MNmNzwvrecFZY06drmZ3tjnc IpFA8whqAqRZMmbNq9HpaD6z+KYgXXvCL6lpRERtqMvrgteneoeh8QqOSWBwmYGHKwVsJp +Mw+Oe5qGU0ebIi7F8EFy/5RsJa/ziM= X-MC-Unique: CxeIfk9YODaIkB5Fes6k7g-1 From: mrezanin@redhat.com To: qemu-devel@nongnu.org Subject: [PATCH v2] Add missing initialization for g_autofree variables Date: Mon, 15 Mar 2021 09:00:32 +0100 Message-Id: <20210315080032.152210-1-mrezanin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mrezanin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=mrezanin@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , Cornelia Huck Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Miroslav Rezanina When declaring g_autofree variable without inicialization, compiler will raise "may be used uninitialized in this function" warning due to automatic free handling. This is mentioned in docs/devel/style.rst (quote from section "Automatic memory deallocation"): * Variables declared with g_auto* MUST always be initialized, otherwise the cleanup function will use uninitialized stack memory Add inicialization to NULL for these declaration to prevent this warning. Signed-off-by: Miroslav Rezanina Reviewed-by: Thomas Huth --- * From v1: -- Removed fixes in hw/remote/memory.c and hw/remote/proxy.c fixed by patch sent by Zenghui Yu (multi-process: Initialize variables declared with g_auto*) --- hw/s390x/s390-pci-vfio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c index ead4f222d5..0ee7dc21f2 100644 --- a/hw/s390x/s390-pci-vfio.c +++ b/hw/s390x/s390-pci-vfio.c @@ -29,7 +29,7 @@ */ bool s390_pci_update_dma_avail(int fd, unsigned int *avail) { - g_autofree struct vfio_iommu_type1_info *info; + g_autofree struct vfio_iommu_type1_info *info =3D NULL; uint32_t argsz; =20 assert(avail); @@ -230,7 +230,7 @@ static void s390_pci_read_pfip(S390PCIBusDevice *pbdev, */ void s390_pci_get_clp_info(S390PCIBusDevice *pbdev) { - g_autofree struct vfio_device_info *info; + g_autofree struct vfio_device_info *info =3D NULL; VFIOPCIDevice *vfio_pci; uint32_t argsz; int fd; --=20 2.27.0