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[86.97.124.202]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fe5de4de4sm43099825e9.8.2026.09.23.23.04.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2026 23:04:59 -0700 (PDT) From: Ahmed Abdelhaleem Ahmed To: James.Bottomley@HansenPartnership.com, mkp@kernel.org Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, loberman@redhat.com, yanghao_ht@163.com Subject: Re: [PATCH] scsi: ch: Do not keep references to data transfer element devices Date: Thu, 24 Sep 2026 06:04:40 +0000 Message-ID: <20260924060440.33252-1-ahmedhal@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260922-ch-dt-leak-v1-1-2b2e40bf1624@gmail.com> References: <20260922-ch-dt-leak-v1-1-2b2e40bf1624@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Self-correction: that Fixes tag is wrong. drivers/scsi/ch.c is not part of the initial git import; it was added a month later, already containing the lookup into ch->dt[] and the kfree() that drops nothing: $ git cat-file -t v2.6.12-rc2:drivers/scsi/ch.c fatal: Not a valid object name v2.6.12-rc2:drivers/scsi/ch.c $ git log --diff-filter=A --oneline -- drivers/scsi/ch.c daa6eda65a53 [SCSI] add scsi changer driver So the correct tag is Fixes: daa6eda65a53 ("[SCSI] add scsi changer driver") first released in v2.6.13-rc1. Nothing since has touched the ch->dt[] reference handling: the only other commits mentioning scsi_device_put() or ch->dt in this file are 66167283c21e ("scsi: ch: fixup refcounting imbalance for SCSI devices"), which does not touch dt[], a2cf8a6306c8 ("[SCSI] ch: Check NULL for kmalloc() return") and 85bc081f44d5 (kmalloc -> kcalloc). Please amend when applying, or say the word and I will send a v2. Thanks, Ahmed