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2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf

 kernel/drivers/usb/class/usbtmc.c
.. .. @@ -1898,6 +1898,8 @@
1898 1898  
1899 1899  	if (request.req.wLength > USBTMC_BUFSIZE)
1900 1900  		return -EMSGSIZE;
1901 +	if (request.req.wLength == 0)	/* Length-0 requests are never IN */
1902 +		request.req.bRequestType &= ~USB_DIR_IN;
1901 1903  
1902 1904  	is_in = request.req.bRequestType & USB_DIR_IN;
1903 1905

..	..	@@ -1898,6 +1898,8 @@
1898	1898
1899	1899	if (request.req.wLength > USBTMC_BUFSIZE)
1900	1900	return -EMSGSIZE;
	1901	+ if (request.req.wLength == 0) /* Length-0 requests are never IN */
	1902	+ request.req.bRequestType &= ~USB_DIR_IN;
1901	1903
1902	1904	is_in = request.req.bRequestType & USB_DIR_IN;
1903	1905