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Fri, 01 Nov 2024 15:10:40 +0100 Message-ID: Date: Fri, 1 Nov 2024 15:10:38 +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 To: Dan Carpenter , linux-iio@vger.kernel.org, Andy Shevchenko References: <54fac4a7-b601-40ce-8c00-d94807f5e214@stanley.mountain> Subject: Re: [bug report] iio: light: isl29018: Replace a variant of iio_get_acpi_device_name_and_data() Content-Language: en-GB From: Markus Elfring Cc: LKML , Jonathan Cameron , Lars-Peter Clausen In-Reply-To: <54fac4a7-b601-40ce-8c00-d94807f5e214@stanley.mountain> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:6q34kpsCcpA5Ye04U3KFQUXXNwEFjFKdmiMeR9SBS4Q+4CzznAe Zzi/S9PoYutlJk1c7gmBFn5BZIhkOVJhEQaDoXuc5Q92fVEDxVT8CMrdn40B1AnHABOrhLx 2qWq95hCd2Td7GuOr2tHZQQsZlAP7ng8LGKxeyvqRvwszfFx9A23hECBSckMnnJq0xePm6s U9NoSplcGyFcePb2RipKA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:5iGr9/A8ZhY=;i1AqHaC3Tf81p4DZ+pmB/D7MNkI vxlUEaPQ+iMA/WvE/hfjghQrbxv1lykZvHalwb05WNjUp+I2TIWcZSgbdUKrkpGZlyOMqhnSX 2Zg0PNAaWYJGErlfBscwyyL1NO83ocCOB5xyZdK6hpmTF+X5BzldSNr6+r8XO3hQhAX1BUlQO oYWNSRk/sBGRuNAnck/ds0pmvYdjMEk8jyWTmErM5VK2qmcBhMVs61Eo+TZtj7tgXW1LFi38+ 0/VRXL7LR4/AxNuK6IuLmNyNFkb8N9Dn9SHEPg+UHnmP8Ga2IA4cvNo0soEbnd4RWSef09KDn XkFIkRummcj9Dk/nhD6qKq8TNMEtK5ZU0UcP6oXMiqBkPq1pHtPO1+6ubYQcJmGjDgiYuT0YD yc9bsUTdI+XMaLbnnlFhKXuCVmI3AHu03Y4BpRKqCwnBSRh7GQH9SLtkvWwLgCzaU/Od5wwEU KEa9/L8dFIguajOhCwHd34sE1Th7DcRQZ5n/q7U4chgNRBjcHae2CSiI5EG2WCSFZKcGb0aps CoRr1FLaYAgOlEIVROq+BFxnuDggG51XoP+LWEhtoT4HgWAoF6vjlBFLJ9CprIGRWABtDjlBP /Z5v3QvUeqR5ryp7+FslSDF0cx9kGR1cjXFfEPfnXF0+x9a2aiSzAonjfFcgTMGxQM1+vLI3D 7eQ6P7ITrJzw1WQo+j69f3RfSJnk1xmh71nh1q9AuUis5YN5/CY7gR3jxbWM/a5EcZ5vuoI6B 0mqaE+6/Uj9rFffsYcKoMg0/zQgoBIrqDOBC7zDyedHhOcPkbxStkm9/z/x4C4OHHmqF2tKuR VQ5PLtpJO8yyPHqTlWdNkbdg== > Commit 14686836fb69 ("iio: light: isl29018: Replace a variant of > iio_get_acpi_device_name_and_data()") from Oct 24, 2024 (linux-next), > leads to the following Smatch static checker warning: > > drivers/iio/light/isl29018.c:724 isl29018_probe() error: uninitializ= ed symbol 'ddata'. > drivers/iio/light/ltr501.c:1514 ltr501_probe() error: uninitialized = symbol 'ddata'. =E2=80=A6 How do you think about to extend the mentioned source code analysis tool a= ny more? See also further development ideas: * ltr501_probe() https://lore.kernel.org/linux-kernel/8c7a5bcc-1fdb-45af-8f0c-1f9b6f0cf05= 8@web.de/ https://lkml.org/lkml/2024/11/1/745 * isl29018_probe() Is there a need to perform a null pointer check also with the local vari= able =E2=80=9Cname=E2=80=9D Regards, Markus