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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b7654ff3c40sm1560776066b.47.2025.11.25.02.45.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 25 Nov 2025 02:45:24 -0800 (PST) Message-ID: Date: Tue, 25 Nov 2025 11:45:22 +0100 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 5/6] iio: accel: Prevent NULL pointer dereference in interrupt setup To: guptarud@gmail.com, Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Cameron , David Lechner , =?UTF-8?Q?Nuno_S=C3=A1?= , Andy Shevchenko Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org References: <20251124-expressatt_nfc_accel_magn_light-v4-0-9c5686ad67e2@gmail.com> <20251124-expressatt_nfc_accel_magn_light-v4-5-9c5686ad67e2@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251124-expressatt_nfc_accel_magn_light-v4-5-9c5686ad67e2@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTI1MDA4NyBTYWx0ZWRfX7EIIsGmXRUfG tyQS8nzygeIxrQM40YcUgK9C7nkmBGpDnRSVyEO32rf4PaLhS/VlgLSzeAFokFpd0BV0i+1p+2K Pues3g91vt4/3E/fXAuZUGTyKqUepw5wt0yvhwzqNA7VDMZFpHJxCIiXc1kEJuWkmEOqMSigsoF 41Np2v0GgaKpibdvE01ppRwszYFi0DThdbiHFwHafvsQ3sjI3rD3/2A4oxdVqjIsz1V3MS/HX2v qsnYFpBWS9vhlDpb6nsyLPIdvqKZIgRVUkdRpQ+uwTc86O0wGYLqZkxwiTpzJR+VzbS1FwqvSfS 1LGsXx6i2Mq/1Mexe5X3xN+9TZLHJQlcrKxHFaCIdRJKJ/04+XYpoI4M52iWufrcmWtYGhK3AyA 6kayR25miHEnGaQENgj46LYPif4WmA== X-Authority-Analysis: v=2.4 cv=H53WAuYi c=1 sm=1 tr=0 ts=692588c6 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=pGLkceISAAAA:8 a=W7vXZdNd1IZ0taGBaDcA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: prxRC2p3VEI93yEb7lo7sYYx1Leypjhl X-Proofpoint-GUID: prxRC2p3VEI93yEb7lo7sYYx1Leypjhl 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=2025-11-25_02,2025-11-24_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 adultscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511250087 On 11/25/25 12:35 AM, Rudraksha Gupta via B4 Relay wrote: > From: Rudraksha Gupta > > The bmc150_accel_set_interrupt() function assumes that the interrupt > info is provided. However, when no IRQ is provided, the info pointer > remains NULL, leading to a kernel oops: Hm, are you sure your device really doesn't have a pin connected to the IC's interrupt line? Konrad