On Wed, 2023-03-15 at 08:04 +0100, Krzysztof Kozlowski wrote:

On 13/03/2023 23:06, Todd Brandt wrote:

quoted

On some platforms there are some platform devices created with
invalid names. For example: "HID-SENSOR-INT-020b?.39.auto" instead
of "HID-SENSOR-INT-020b.39.auto"

This string include some invalid characters, hence it will fail to
properly load the driver which will handle this custom sensor. Also
it is a problem for some user space tools, which parse the device
names from ftrace and dmesg.

This is because the string, real_usage, is not NULL terminated and
printed with %s to form device name.

To address this, we initialize the real_usage string with 0s.

Philipp Jungkamp created this fix, I'm simply submitting it. I've
verified it fixes bugzilla issue 217169

Reported-and-tested-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Todd Brandt <redacted>

SoB denotes that you reported this and tested. Otherwise shall we
start
adding Reported and Tested tags to all of our commits?

I just copied it from someone else's post on the mailing list, I
thought it was part of the standard lkml vernacular but I just looked
it up and it's explicitly forbidden in
Documentation/process/maintainer-top.rst line 385. So the answer is no.
I'll not use it again.

Best regards,
Krzysztof