From patchwork Mon Jan 22 17:16:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhipeng Lu X-Patchwork-Id: 13525842 Received: from azure-sdnproxy.icoremail.net (azure-sdnproxy.icoremail.net [20.231.56.155]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CAEDC4D592; Mon, 22 Jan 2024 17:16:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=20.231.56.155 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705943807; cv=none; b=hqZK8GaYmK1udIBWBqQOv6thZ0anipOdxn6G7G918K0dca2tNgnImdvQ5PiJi09upqAK0kh/R7WTK8ZPyjPeqXBzLr6L3K9P+ZRJVQaEHfbG7GQ33Wheljx7SYYWfNB7TUxGthu+5HXX/zFhb6YITEkDfEpMklb4k8tZjc4e0yQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705943807; c=relaxed/simple; bh=J+CE1fjgXdIrGGtCeeEtcrHP/hpRi/SonczTZdsbyEc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=VFn0r/Nn0ag0byiKd8NzxS61MxKbTvD/gq+eNPxq/8FlXb++jkFD0J34tr7zDXKsozTWXmvuMHhwhYJCfvF2v8mv6VuLV1a131h30fw/IInZP2GbEP17KZNG99hE4wT8a8N6dKcMhzjCBi4EuWTUySErXFUPbT5k5lG/Y+NoOBE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=zju.edu.cn; spf=pass smtp.mailfrom=zju.edu.cn; arc=none smtp.client-ip=20.231.56.155 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=zju.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zju.edu.cn Received: from luzhipeng.223.5.5.5 (unknown [39.174.92.167]) by mail-app4 (Coremail) with SMTP id cS_KCgCHhYXsoq5lm0x5AA--.18549S2; Tue, 23 Jan 2024 01:16:29 +0800 (CST) From: Zhipeng Lu To: alexious@zju.edu.cn Cc: Kashyap Desai , Sumit Saxena , Shivasharan S , Chandrakanth patil , "James E.J. Bottomley" , "Martin K. Petersen" , megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] [v2] scsi: megaraid_sas: Fix a memleak in megasas_init_fw Date: Tue, 23 Jan 2024 01:16:10 +0800 Message-Id: <20240122171610.3840351-1-alexious@zju.edu.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: cS_KCgCHhYXsoq5lm0x5AA--.18549S2 X-Coremail-Antispam: 1UD129KBjvJXoW7tFyfZr4Dur1xCFyUXrWxCrg_yoW5JF15pr yruw13tr17AayxWrWqkw4F93yYyw48G3s8Kr18J34j93Wagr15XF4vgrW7GF97CFZ5JF9x Zr4Yqr1fCF4UKaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUU9Y14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v26r xl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj 6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr 0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E 8cxan2IY04v7MxkF7I0En4kS14v26r1q6r43MxAIw28IcxkI7VAKI48JMxC20s026xCaFV Cjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWl x4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r 1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_ JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCT nIWIevJa73UjIFyTuYvjfUonmRUUUUU X-CM-SenderInfo: qrsrjiarszq6lmxovvfxof0/ In the error-handling paths after allocation of fusion->stream_detect_by_ld and fusion->stream_detect_by_ld[i], megasas_init_fw should free them or there would be memleaks. Fixes: 2e47e4e62e40 ("scsi: megaraid_sas: Fail init if heartbeat timer fails") Signed-off-by: Zhipeng Lu --- Changelog: v2: remove the unused variable j. --- drivers/scsi/megaraid/megaraid_sas_base.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 3d4f13da1ae8..a7d3c51fc17b 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -6016,7 +6016,7 @@ static int megasas_init_fw(struct megasas_instance *instance) void *base_addr_phys; struct megasas_ctrl_info *ctrl_info = NULL; unsigned long bar_list; - int i, j, loop; + int i, loop; struct IOV_111 *iovPtr; struct fusion_context *fusion; bool intr_coalescing; @@ -6378,11 +6378,7 @@ static int megasas_init_fw(struct megasas_instance *instance) if (!fusion->stream_detect_by_ld[i]) { dev_err(&instance->pdev->dev, "unable to allocate stream detect by LD\n "); - for (j = 0; j < i; ++j) - kfree(fusion->stream_detect_by_ld[j]); - kfree(fusion->stream_detect_by_ld); - fusion->stream_detect_by_ld = NULL; - goto fail_get_ld_pd_list; + goto fail_alloc_stream_detect; } fusion->stream_detect_by_ld[i]->mru_bit_map = MR_STREAM_BITMAP; @@ -6502,7 +6498,7 @@ static int megasas_init_fw(struct megasas_instance *instance) megasas_start_timer(instance); } else { instance->skip_heartbeat_timer_del = 1; - goto fail_get_ld_pd_list; + goto fail_alloc_stream_detect; } } @@ -6520,6 +6516,13 @@ static int megasas_init_fw(struct megasas_instance *instance) fail_start_watchdog: if (instance->requestorId && !instance->skip_heartbeat_timer_del) del_timer_sync(&instance->sriov_heartbeat_timer); +fail_alloc_stream_detect: + if (instance->adapter_type >= VENTURA_SERIES) { + for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) + kfree(fusion->stream_detect_by_ld[i]); + kfree(fusion->stream_detect_by_ld); + fusion->stream_detect_by_ld = NULL; + } fail_get_ld_pd_list: instance->instancet->disable_intr(instance); megasas_destroy_irqs(instance);