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Sun, 13 Sep 2026 15:33:21 -0700 (PDT) Received: from localhost.localdomain ([104.39.73.78]) by smtp.gmail.com with ESMTPSA id af79cd13be357-939e80bfc90sm824019585a.37.2026.09.13.15.33.18 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 13 Sep 2026 15:33:20 -0700 (PDT) From: Myeonghun Pak To: Hans Verkuil , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Ijae Kim Subject: [PATCH] media: go7007: unregister the I2C adapter on USB probe failure Date: Sun, 13 Sep 2026 18:33:13 -0400 Message-ID: <20260913223313.90617-1-mhun512@gmail.com> X-Mailer: git-send-email 2.47.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit USB probe failures after I2C adapter registration free the backing go7007 structure without unregistering the adapter. If i2c_adapter_online is set, unregister the adapter before releasing USB resources so that I2C client removal can still use its callbacks. This issue was identified during our ongoing static-analysis research while reviewing kernel code. Fixes: 59aea928d57f ("[media] go7007: don't continue if firmware can't be loaded") Co-developed-by: Ijae Kim Signed-off-by: Ijae Kim Signed-off-by: Myeonghun Pak Assisted-by: OpenAI:GPT-5.6 --- Validated with an ARM64 W=1 object build and strict checkpatch. No hardware runtime or probe-failure injection testing was performed. drivers/media/usb/go7007/go7007-usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/usb/go7007/go7007-usb.c b/drivers/media/usb/go7007/go7007-usb.c index c0cb92fa6..b2bf24d02 100644 --- a/drivers/media/usb/go7007/go7007-usb.c +++ b/drivers/media/usb/go7007/go7007-usb.c @@ -1320,6 +1320,8 @@ static int go7007_usb_probe(struct usb_interface *intf, return 0; allocfail: + if (go->i2c_adapter_online) + i2c_del_adapter(&go->i2c_adapter); go7007_usb_release(go); kfree(go); return -ENOMEM;