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Wed, 14 Oct 2026 20:49:19 -0700 (PDT) Received: from i4-gl-tmk5904-1.ad.psu.edu ([130.203.156.90]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-91b97b3864dsm70540626d6.14.2026.10.14.20.49.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2026 20:49:18 -0700 (PDT) From: Myeonghun Pak To: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Ijae Kim , Vasileios Almpanis Subject: [PATCH 0/4] usb: gadget: pch_udc: order IRQ and descriptor lifetimes Date: Wed, 14 Oct 2026 23:49:12 -0400 Message-ID: <20261015034916.2773248-1-mhun512@gmail.com> X-Mailer: git-send-email 2.53.0 Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit These fixes are part of our ongoing research while reviewing kernel code. Apply after the published probe-cleanup and VBUS-work patches: https://lore.kernel.org/all/20260811-pch-v1-1-f79801c1cd91@gmail.com/ https://lore.kernel.org/all/CAGEsz8GQR2vJ8ddedaLg=Yq_RoeTxgoXTQ4-QS8mJpDXNn36qA@mail.gmail.com/ 1. Drain works and release IRQ handlers before cleanup; establish a final controller interrupt mask after the PCI handler has finished. 2. Initialize DMA before IRQ registration; enable bus mastering afterwards. 3. Track successful EP0 mappings and return -EIO on mapping failure. 4. Return the EP0 data descriptor to its owning pool. Compile-tested only.