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Tue, 22 Sep 2026 22:15:27 +0200 (CEST) From: Eric Farman To: Christian Borntraeger , Matthew Rosato Cc: Cornelia Huck , qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Eric Farman Subject: [PATCH v3 5/9] vfio/ccw: Clear error object pointer after non-fatal errors Date: Tue, 22 Sep 2026 22:15:21 +0200 Message-ID: <20260922201526.2383047-6-farman@linux.ibm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260922201526.2383047-1-farman@linux.ibm.com> References: <20260922201526.2383047-1-farman@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=V/XoQuni c=1 sm=1 tr=0 ts=6ab2e1e4 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=WuYEg3pJWr1ZmXxL5igA:9 a=ZXulRonScM0A:10 a=zZCYzV9kfG8A:10 X-Proofpoint-ORIG-GUID: KZViQFp_MZZT2lDtrOoarV87EXByY6sj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIyMDI5MyBTYWx0ZWRfX2HXIC7ybk0BN Uui4/ppqjFur5iS9RBGe7iIY/MbNE4N/pwhnmMEvnTFTub35Zk7en59eH0Inn0xqpet5RiR+8iv U2Rdv7B3JlB+kccl0OqfoHSGWkw0A3X3v/elNdH6rkKVzqGYEGj9tOAMjMp7phkh9m3q6WLF1nw BpO9g2zhtGyyOcrPRAqEj2FzskkSRH/moDCAa9WiBLsofOlpkzwG6WKXya/A7c90GAc5BDs0AKU sToH43boWj5PRvuj9AnIG5h/nhBBNwYEhSi6niIMiVyK3iWNLenQaSEMsgN4I5tSc1QvW/AuoCi qseWZiSAuVMjqKMTCPj74fi/4+KTsYqMc+hv8VWOU18xACYdWD/PXfuxNRTajJ4UGAHdCjH7BY1 4pbJGVN5SjsWeVxFk0/YBere7kadwcmD7ULdbvjZXx0WPV+Bg8oJgOWCd0YMuwOsAVF0638rmeu sYBpqaShHpjmpoAYiRg== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIyMDI5MyBTYWx0ZWRfXy6P/kkpdWaiW JoNZG8mOtnFN/7pk3w6t6XDh01mH894O+n/HFxrJCzr9BX0B/pXOXGENfVKTLKYfJbknvCs+KWY HxZj+kmtme90ZPifPTvon9weuK6j4d8= X-Proofpoint-GUID: KZViQFp_MZZT2lDtrOoarV87EXByY6sj 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=2026-09-22_03,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 spamscore=0 malwarescore=0 clxscore=1015 phishscore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609220293 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. Reviewed-by: Matthew Rosato 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