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AJvYcCU1Ye+4E1CzeRle4RGnGmSAa86/1aD45h4Yo6/d4hffrgOxi1808wzkL1aloAydbErb8b4GOY1m/WOEZPnyLg9WAhYrOALDJjw2iWVSRolvdcDP7jJ2WDEKyvXJOeBQPX2Ra2FR/Tk2xg== X-Gm-Message-State: AOJu0YzEWvTfzogC1uBmvG7Sli3YGAhGAMXlsk4rVA2fQkSZx8qiMSZM H8H3GQitSwHQRrljZsG3NnzdyvTNAMu7ngn3mIoENzQuzSyM8vtu X-Google-Smtp-Source: AGHT+IEx3fb+7CZAdI2HFwkeSLYJo/LvRwcZTbPcVmho9H+x5RnGiZdks67LuE4ECCLmjLmlv5lePQ== X-Received: by 2002:a05:6a20:72a0:b0:1af:ab23:82ce with SMTP id o32-20020a056a2072a000b001afab2382cemr6275075pzk.3.1714999132652; Mon, 06 May 2024 05:38:52 -0700 (PDT) Received: from VM-147-239-centos.localdomain ([43.132.141.4]) by smtp.gmail.com with ESMTPSA id w6-20020a634746000000b005dc4829d0e1sm7940433pgk.85.2024.05.06.05.38.50 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 May 2024 05:38:52 -0700 (PDT) From: Yongzhi Liu To: skashyap@marvell.com, Markus.Elfring@web.de, njavali@marvell.com, martin.petersen@oracle.com, James.Bottomley@HansenPartnership.com Cc: himanshu.madhani@oracle.com, GR-QLogic-Storage-Upstream@marvell.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, jitxie@tencent.com, huntazhang@tencent.com, Yongzhi Liu Subject: [PATCH V4 1/2] scsi: qla2xxx: Fix double free of fcport in qla24xx_els_dcmd_iocb() Date: Mon, 6 May 2024 20:38:34 +0800 Message-Id: <20240506123835.17527-2-hyperlyzcs@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20240506123835.17527-1-hyperlyzcs@gmail.com> References: <230af978-c834-423b-8d42-78c164be40b9@web.de> <20240506123835.17527-1-hyperlyzcs@gmail.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When dma_alloc_coherent() or qla2x00_start_sp() returned an error, the callback function qla2x00_els_dcmd_sp_free in qla2x00_sp_release called qla2x00_free_fcport() to free "fcport". We shouldn't call qla2x00_free_fcport() again in the error handling paths, and thus delete the duplicate qla2x00_free_fcport() calls. Fixes: 82f522ae0d97 ("scsi: qla2xxx: Fix double free of fcport") Signed-off-by: Yongzhi Liu --- drivers/scsi/qla2xxx/qla_iocb.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 0b41e8a06602..faec66bd1951 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -2751,7 +2751,6 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, if (!elsio->u.els_logo.els_logo_pyld) { /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); - qla2x00_free_fcport(fcport); return QLA_FUNCTION_FAILED; } @@ -2776,7 +2775,6 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, if (rval != QLA_SUCCESS) { /* ref: INIT */ kref_put(&sp->cmd_kref, qla2x00_sp_release); - qla2x00_free_fcport(fcport); return QLA_FUNCTION_FAILED; }