From patchwork Sun Jan 14 10:24:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Erick Archer X-Patchwork-Id: 13519132 Received: from mout.gmx.net (mout.gmx.net [212.227.15.18]) (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 30BD31FB2; Sun, 14 Jan 2024 10:24:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmx.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmx.com header.i=erick.archer@gmx.com header.b="E/PuUshD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.com; s=s31663417; t=1705227865; x=1705832665; i=erick.archer@gmx.com; bh=v7nvUPA9OesHnOY8TOQ/tEDzJPZ9C3L0VTmMHqqdqCg=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date; b=E/PuUshD8TGQY82SBpOAPIL8fFQkIpFxpnOWu6hlgAimBDTC7j6dVeGpz7SwGooA eoCcFM19BVd+hLZ7R7/5tjB1xXYK11S8qd0G2pgP+GYQxs2tZVe/Vw1Wlvj6mcEQh Y/YbDLHAI9iQjvvdv2MPVT/04odvB6IuZAH58zbmvfFnaj9Uoq6LZErebRsNBcpGO c51o5BAYcMItEVZlMaPa4Ck2daSzv+bdtk80tI/hN/hV4NEitkcBcDeEFJFKGrxMp 3vZQhDAroEebw8Rj9bt91MM+4AZnH78Px+jTGFP+kZEdTyzZxhT6Uk8f5jlv5wRVk y9a8fKE0fDUBY21N5g== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from localhost.localdomain ([79.157.194.183]) by mail.gmx.net (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1N33Ed-1r1UTF4BzR-013RDI; Sun, 14 Jan 2024 11:24:25 +0100 From: Erick Archer To: "James E.J. Bottomley" , "Martin K. Petersen" , "Gustavo A. R. Silva" Cc: Erick Archer , Kees Cook , Bjorn Helgaas , Justin Stitt , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH v2] scsi: csiostor: Use kcalloc() instead of kzalloc() Date: Sun, 14 Jan 2024 11:24:00 +0100 Message-Id: <20240114102400.3816-1-erick.archer@gmx.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Provags-ID: V03:K1:xJ85ZowQaVa1OldU6FzPfNXRLaX+yPPgWuef38/WNGua4RxRri6 OlQil9I2dzIT/+wjstr6h9LR3cm8DSnkJuNn/9kr5MqgriqGEE52TDlLGrjHpdN2wRClrFk gx/J6xAu8I1bm8gH+Be0N+RmCb5Fuh/iu3awBpP03OCLZGy/wsn1xtjPbsgOcP36KrPi3/h fuhJOfkttmNy14ZTcJJUg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:vNv9MwBiC54=;OJwtbY227lidkukH55eW6u+Blo4 3qCTOKjT9ZwDmW76FXlvj7NkWiyCt0q3tp+1rCjBaRsykO/HHmC1GcAgVwXcXY9zbJB9syQli lGqX5kDS1wsWobJBai0E96tBrWCS/fiYrgsjg6RuPXX+siG2cgYC+CQa8wDmjePYSO7D7Ufkp RengseWl51czMZs+z5KtAZtEUs5TertUVLLAPFE/y/rzHou1+7jhbvlTJ8h7QggdSQvte6O6E jsmmZJ6Y+t6AIN/HlV+Nt/h5020vlP36+vOwv9N0r/06ad83ITUGpe96BfTa8qTPm4MlDm6m5 0TVfZIgjMLols9tz3KrA9Ag3RgM5Cg39nYdCMcqU7N11XR6IoWNZlN6mqKE5F1/pP+parnNjV /sYfFzxxYYwGSLOb4FWwM83lhK7q3Kb4cyjE7xLYUnHL/oVn+kgoqRbttK6uay9tO64OJFvv3 a0fQcEBD4o7cNes3KdjXubWJSquwAJoY4v7Qq2IzDqnWUbK/PWIHE6EJZ3rtP7Bs69ykxXHr8 tO6yIiL0gAlN4NpZfDvcZpi1hJeYgNGgyFk2syQIt/aaea+PiIgSPdB21WiFjEw34dMnmHnsA vJPBHsarcaPw3t982FyGKy2qAcFPqcB04GN1fRdW7wzmlYXjO/fymRYyI0Clt6obA3dTZFApY DMGpsvm1RynymxFKLl23Gc3jCW6/9/pYVWB8WS5rp30D/hEpxs4a0VIgulHOcpyZ19mN37HrF Y930d4QNMcBsfxc2tvvYOweHRJSwAHeZXtM3Cnd5IPmpZpejbgiFJjkgDkuKAX3ygW+X8RI7n 0hytW7qJ8X4/HXJzULYFhuZAu95J5ZRTIZsglDFuN21gcbV6z1r13avJPNXTGynS8Tc0SVE74 uoXUmdki8cPq9+8w3AJmwP9fexqHEyUrpughz+RJu9Chka80+ArCVuOfa+MW7zMUD2hi5cPbm AJ2/5Rkc5aqWF3FB0nPRhRUd/gA= Use 2-factor multiplication argument form kcalloc() instead of kzalloc(). Also, it is preferred to use sizeof(*pointer) instead of sizeof(type) due to the type of the variable can change and one needs not change the former (unlike the latter). Link: https://github.com/KSPP/linux/issues/162 Signed-off-by: Erick Archer Reviewed-by: Gustavo A. R. Silva --- Changes in v2: - Update the changelog text describing the sizeof() changes (Gustavo A. R. Silva) Version 1: Link: https://lore.kernel.org/linux-hardening/20240112182603.11048-1-erick.archer@gmx.com/ --- drivers/scsi/csiostor/csio_init.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) -- 2.25.1 diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c index d649b7a2a879..d72892e44fd1 100644 --- a/drivers/scsi/csiostor/csio_init.c +++ b/drivers/scsi/csiostor/csio_init.c @@ -698,8 +698,7 @@ csio_lnodes_block_request(struct csio_hw *hw) struct csio_lnode **lnode_list; int cur_cnt = 0, ii; - lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), - GFP_KERNEL); + lnode_list = kcalloc(hw->num_lns, sizeof(*lnode_list), GFP_KERNEL); if (!lnode_list) { csio_err(hw, "Failed to allocate lnodes_list"); return; @@ -737,8 +736,7 @@ csio_lnodes_unblock_request(struct csio_hw *hw) struct csio_lnode **lnode_list; int cur_cnt = 0, ii; - lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), - GFP_KERNEL); + lnode_list = kcalloc(hw->num_lns, sizeof(*lnode_list), GFP_KERNEL); if (!lnode_list) { csio_err(hw, "Failed to allocate lnodes_list"); return; @@ -775,8 +773,7 @@ csio_lnodes_block_by_port(struct csio_hw *hw, uint8_t portid) struct csio_lnode **lnode_list; int cur_cnt = 0, ii; - lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), - GFP_KERNEL); + lnode_list = kcalloc(hw->num_lns, sizeof(*lnode_list), GFP_KERNEL); if (!lnode_list) { csio_err(hw, "Failed to allocate lnodes_list"); return; @@ -816,8 +813,7 @@ csio_lnodes_unblock_by_port(struct csio_hw *hw, uint8_t portid) struct csio_lnode **lnode_list; int cur_cnt = 0, ii; - lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), - GFP_KERNEL); + lnode_list = kcalloc(hw->num_lns, sizeof(*lnode_list), GFP_KERNEL); if (!lnode_list) { csio_err(hw, "Failed to allocate lnodes_list"); return; @@ -855,8 +851,7 @@ csio_lnodes_exit(struct csio_hw *hw, bool npiv) struct csio_lnode **lnode_list; int cur_cnt = 0, ii; - lnode_list = kzalloc((sizeof(struct csio_lnode *) * hw->num_lns), - GFP_KERNEL); + lnode_list = kcalloc(hw->num_lns, sizeof(*lnode_list), GFP_KERNEL); if (!lnode_list) { csio_err(hw, "lnodes_exit: Failed to allocate lnodes_list.\n"); return;