I suggest to choose a more succinct patch subject. > After the device is disconnected from the host side, the interface of > the device is reset. If the userspace operates the device again, > an error code should be returned. Please use an imperative wording for the commit message. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=719fdd32921fb7e3208db8832d32ae1c2d68900f#n151 > Signed-off-by: Zqiang <qiang.zhang@xxxxxxxxxxxxx> Did you really specify your real name here? Regards, Markus