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Wed, 16 Sep 2026 22:32:46 +0200 (CEST) From: Eric Farman To: Christian Borntraeger , Matthew Rosato Cc: Cornelia Huck , qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Eric Farman , qemu-stable@nongnu.org Subject: [PATCH 5/9] vfio/ccw: Clear error object pointer after non-fatal errors Date: Wed, 16 Sep 2026 22:32:37 +0200 Message-ID: <20260916203242.2509787-6-farman@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260916203242.2509787-1-farman@linux.ibm.com> References: <20260916203242.2509787-1-farman@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: DgSABzF4iJvsVuu8P3-VGxSG9sPKRMSJ X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE2MDI4NSBTYWx0ZWRfX1j1GYgCjGlk3 uhDi892GRwT7Xza9MPz1g8o4Lqko0LkBb6s7YPTc8RB7ZI/mefXyapX8AU23UJYbfXX++KZ1Bqs NelRPmejfLzY26YU8VA72wFVwfVmhWs= X-Authority-Analysis: v=2.4 cv=cvgOAF4i c=1 sm=1 tr=0 ts=6aaafcf5 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=69wJf7TsAAAA:8 a=VnNF1IyMAAAA:8 a=WuYEg3pJWr1ZmXxL5igA:9 a=ZXulRonScM0A:10 a=zZCYzV9kfG8A:10 a=Fg1AiH1G6rFz08G2ETeA:22 X-Proofpoint-ORIG-GUID: DgSABzF4iJvsVuu8P3-VGxSG9sPKRMSJ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE2MDI4NSBTYWx0ZWRfX26mx5RET8Ui5 Fh+i98gLkx5yl7uHuM8wwGjQcTdXaNb6OogTwF0MIJcXJhvJmL8q8OG3KU6oz6dSP4vCiSPE9WW TV2C4Kr13gk0fKY4nOeoIoxMi9WpHlKVrAfotm0XA2Vz/Hd+fJqBWf3qtutzFl/Ru+EDN02Mjtb ZJYaxZAENqYCROywlscLRReaEtKoPqK8IK2s6j2nlhfbi0Gukb7MLBiHydE6uKK+P3bnLTiZqGw JA/JCNYhTE7siuG00rGqaczLZz5zS4x0vnAcsF/RXL8mdeFfA4QxieGqGKkrP0vXFDHCI5ENuSu u+44B+NYQhdo0oz6VpKL/m8+i0x6mD7xoX+qUoYtE/XePIaxnXIMrMZS0Tqfjz997UyxqzgtnzK fkslhQ14ETvtHTMvzDf0KONQIb76t7SsJBLMO1KPdvFP+rwj2GGv7fbru08Hbq2lyEUQ8tUb04i YH7e754Y8tnjopCkzeA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-16_03,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 bulkscore=0 impostorscore=0 phishscore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609160285 Received-SPF: pass client-ip=148.163.156.1; envelope-from=farman@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Just like in vfio/ap, there is a non-fatal message that could be generated, with a stale pointer in the error object variable. Unlike vfio/ap, there is no secondary message that could attempt to use it. Clear it in the same way, in case that ever changes. Cc: qemu-stable@nongnu.org Fixes: 6178d4689a ("vfio-ccw: Permit missing IRQs") Signed-off-by: Eric Farman --- hw/vfio/ccw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c index c3dc7c1962..8e29a3ae61 100644 --- a/hw/vfio/ccw.c +++ b/hw/vfio/ccw.c @@ -604,8 +604,10 @@ static void vfio_ccw_realize(DeviceState *dev, Error= **errp) /* * Report this error, but do not make it a failing condition. * Lack of this IRQ in the host does not prevent normal operatio= n. + * Clear the pointer, since the warning will release it. */ warn_report_err(err); + err =3D NULL; } =20 return; --=20 2.53.0