From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 6F1C13307B for ; Wed, 15 Nov 2023 19:45:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gp7lA+AX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22D4BC433CB; Wed, 15 Nov 2023 19:45:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700077504; bh=IHDNcExyrDf0QZjRD+IRFeYZlYLTclq0oeyMZI/nhZQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gp7lA+AXkNbZPRAERSRvHiAWmmgVYFHdj2pn+qy3+y22yxHKlUN9+1cvmYlspDEt/ 6JSFjSyZ3mDj2v7+t4yW2Zfl9PO2fn7cc6hW0Vz4Wzmb39DbdQ6YcLVAenZMEso5km sC/sZuds99ZH7ooJbWfnekTryX9FG7OmSGMwNLoY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christophe JAILLET , Herbert Xu , Sasha Levin Subject: [PATCH 6.6 343/603] crypto: hisilicon/hpre - Fix a erroneous check after snprintf() Date: Wed, 15 Nov 2023 14:14:48 -0500 Message-ID: <20231115191637.256689648@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115191613.097702445@linuxfoundation.org> References: <20231115191613.097702445@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christophe JAILLET [ Upstream commit c977950146720abff14e46d8c53f5638b06a9182 ] This error handling looks really strange. Check if the string has been truncated instead. Fixes: 02ab994635eb ("crypto: hisilicon - Fixed some tiny bugs of HPRE") Signed-off-by: Christophe JAILLET Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/hisilicon/hpre/hpre_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index 39297ce70f441..db44d889438a6 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -1033,7 +1033,7 @@ static int hpre_cluster_debugfs_init(struct hisi_qm *qm) for (i = 0; i < clusters_num; i++) { ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i); - if (ret < 0) + if (ret >= HPRE_DBGFS_VAL_MAX_LEN) return -EINVAL; tmp_d = debugfs_create_dir(buf, qm->debug.debug_root); -- 2.42.0