From nobody Sun Jun 14 04:20:58 2026 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D830C1A6830 for ; Sun, 3 May 2026 09:30:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777800649; cv=none; b=luA5IL8CjKSO4ODkboL5BU1UKXBAk2OgdK0fpWhndJvLh0nbSnGmtd7lQwlm36OmsvmmQ+YfePRr8EhFUzVOkF18tAc767pCOnfjRHAI4eQ8B51u8DUisuEXSiLb09lL/srz7cAolXWEZ4TsedDHApJw4A8nKF9nGjir8UAD+ho= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777800649; c=relaxed/simple; bh=9OPrwbAJWZPJfziEFYl6OZ9pGXIuPAoSubCkuJCFUcg=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=YXT8BXniBYRcIzhuJuauYeJmoHXL+lb6a32eeBBmo0pZYMjayjlCCXf75Tz9N/XPVcJQir6tRTXQECozKfl7MCZQrXw/Wcm6p+yp58wvLLLjAMZaWqpaKzlbIqLR9d9mbYD95pBxMvzbc8a5Tc/ljJ9rZ6q2N37gmtUgzT7E6jg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: c0afbb5e46d211f1aa26b74ffac11d73-20260503 X-CTIC-Tags: HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NAME, HR_CC_NO_NAME, HR_CTE_8B HR_CTT_MISS, HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME HR_SJ_DIGIT_LEN, HR_SJ_LANG, HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM HR_SJ_PHRASE, HR_SJ_PHRASE_LEN, HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT HR_TO_NO_NAME, IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_TRUSTED SA_EXISTED, SN_EXISTED, SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS CIE_BAD, CIE_GOOD, CIE_GOOD_SPF, GTI_FG_BS, GTI_RG_INFO GTI_C_BU, AMN_GOOD, ABX_MISS_RDNS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.12,REQID:e91e235b-8215-4c25-ab3e-bef8282dcf5a,IP:10, URL:0,TC:0,Content:0,EDM:0,RT:0,SF:-30,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:-20 X-CID-INFO: VERSION:1.3.12,REQID:e91e235b-8215-4c25-ab3e-bef8282dcf5a,IP:10,UR L:0,TC:0,Content:0,EDM:0,RT:0,SF:-30,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-20 X-CID-META: VersionHash:e7bac3a,CLOUDID:913951ab96c7ba50fc78151b4706d7d7,BulkI D:260503173043NC35K234,BulkQuantity:0,Recheck:0,SF:10|38|66|78|102|127|850 |898,TC:nil,Content:0|15|50,EDM:-3,IP:-2,URL:0,File:nil,RT:nil,Bulk:nil,QS :nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,A RC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: c0afbb5e46d211f1aa26b74ffac11d73-20260503 X-User: zenghongling@kylinos.cn Received: from localhost.localdomain [(112.64.161.44)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 2049944999; Sun, 03 May 2026 17:30:41 +0800 From: Hongling Zeng To: dpenkler@gmail.com, gregkh@linuxfoundation.org, dominik.karol.piatkowski@protonmail.com, adam.quandour@gmail.com, kees@kernel.org Cc: linux-kernel@vger.kernel.org, zhongling0719@126.com, Hongling Zeng Subject: [PATCH] gpib: cb7210: Fix region leak when request_irq fails Date: Sun, 3 May 2026 17:30:36 +0800 Message-Id: <20260503093036.283546-1-zenghongling@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When request_irq() fails, the region allocated by request_region() is not released. Fix this by calling release_region() before returning. Smatch warning: drivers/gpib/cb7210/cb7210.c:1068 cb_isa_attach() warn: 'config->ibbase' from __request_region() not released on lines: 1064. Fixes: 82e3508046f9b ("gpib: cb7210: add isa support module") Signed-off-by: Hongling Zeng --- drivers/gpib/cb7210/cb7210.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpib/cb7210/cb7210.c b/drivers/gpib/cb7210/cb7210.c index 6dd8637c5964..05058bf2cd50 100644 --- a/drivers/gpib/cb7210/cb7210.c +++ b/drivers/gpib/cb7210/cb7210.c @@ -1062,6 +1062,7 @@ static int cb_isa_attach(struct gpib_board *board, co= nst struct gpib_board_confi // install interrupt handler if (request_irq(config->ibirq, cb7210_interrupt, isr_flags, DRV_NAME, boa= rd)) { dev_err(board->gpib_dev, "failed to obtain IRQ %d\n", config->ibirq); + release_region(nec7210_iobase(cb_priv), cb7210_iosize); return -EBUSY; } cb_priv->irq =3D config->ibirq; --=20 2.25.1