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[5.226.109.132]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-64b91494ce2sm19556811a12.17.2025.12.25.04.16.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Dec 2025 04:16:36 -0800 (PST) From: Krzysztof Kozlowski To: Peter Rosin , linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski , Greg Kroah-Hartman , Alper Ak Subject: [PATCH] mux: mmio: Zero the allocated memory Date: Thu, 25 Dec 2025 13:16:31 +0100 Message-ID: <20251225121630.8062-2-krzysztof.kozlowski@oss.qualcomm.com> X-Mailer: git-send-email 2.51.0 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 X-Proofpoint-GUID: hu57wAGzppd5Z_Ot-_3WFdnNE7UJ1hPX X-Proofpoint-ORIG-GUID: hu57wAGzppd5Z_Ot-_3WFdnNE7UJ1hPX X-Authority-Analysis: v=2.4 cv=Uolu9uwB c=1 sm=1 tr=0 ts=694d2b27 cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=IspDOlHbPpnWcMcX2pPG3w==:17 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=bC-a23v3AAAA:8 a=pGLkceISAAAA:8 a=ag1SF4gXAAAA:8 a=EUspDBNiAAAA:8 a=HThG1Jxbnu890Tve7WgA:9 a=dawVfQjAaf238kedN5IG:22 a=FO4_E8m0qiDe52t0p3_H:22 a=Yupwre4RP9_Eg_Bd0iYG:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjI1MDExNiBTYWx0ZWRfX0cu4toF7wIoS sCvoSD1JNuf7L+3Hy24t1Rb80hyJsMEWbGnpN7jPzUkeMXZFE5P4OSuYWLZQvXUGAI5rp5VFrfe 7qxxBwUI9YV8ExTtXoPJLm0K7WuuJ5zjBwGDbBbBxMnmWd3S0bj5+MwetuziWqiktDz+4HSOdoU SguD9fjEM05YYPm162VaAp2QI3aXA/6vVJ27w3JFF4Vnq2ME9cXFN3jQaR9Pbh1knRwCvGfqM+Q Y1TZfNAVJnAbbeuo5EW5zXuhzR9SXVvnszLtTFoc4PWVNCcT+TS1k34sga9IwdA63Vts8QrN0X/ NNkqZoMzgiVJ6nxgfH3ao+cOsdsmx8BvI87O83RBkYJCga3U21FnRxmSf7wX5L8xAMG9loJp4/o 1Kvc90ZFE9hTbxY1k5HlgBaFftIxctbYiUwmxUzQduWL7H8+h96cGYtvMEsb0jlp0Uy4EE54DPh hO8v7bY62bYW49AIi4g== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-24_04,2025-12-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 spamscore=0 suspectscore=0 adultscore=0 phishscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512250116 Content-Type: text/plain; charset="utf-8" Zero the allocated memory in probe() for fields and states for increased code safety and to match expected Linux coding style. Cc: Greg Kroah-Hartman Signed-off-by: Krzysztof Kozlowski --- Cc: Alper Ak Dependency - context rebased on top of: https://patch.msgid.link/20251225114102.337593-1-alperyasinak1@gmail.com --- drivers/mux/mmio.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mux/mmio.c b/drivers/mux/mmio.c index 3409af1ffb80..0bd58eefb14a 100644 --- a/drivers/mux/mmio.c +++ b/drivers/mux/mmio.c @@ -100,12 +100,14 @@ static int mux_mmio_probe(struct platform_device *pde= v) =20 mux_mmio =3D mux_chip_priv(mux_chip); =20 - mux_mmio->fields =3D devm_kmalloc(dev, num_fields * sizeof(*mux_mmio->fie= lds), GFP_KERNEL); + mux_mmio->fields =3D devm_kcalloc(dev, num_fields, sizeof(*mux_mmio->fiel= ds), + GFP_KERNEL); if (!mux_mmio->fields) return -ENOMEM; =20 - mux_mmio->hardware_states =3D devm_kmalloc(dev, num_fields * - sizeof(*mux_mmio->hardware_states), GFP_KERNEL); + mux_mmio->hardware_states =3D devm_kcalloc(dev, num_fields, + sizeof(*mux_mmio->hardware_states), + GFP_KERNEL); if (!mux_mmio->hardware_states) return -ENOMEM; =20 --=20 2.51.0