• Eric Sesterhenn's avatar
    [PATCH] USB: negative index in drivers/usb/host/isp116x-hcd.c · d5ce1379
    Eric Sesterhenn authored
    From: Eric Sesterhenn <snakebyte@gmx.de>
    
    This fixes coverity Bug #390.
    
    With the following code
    
    	ret = ep->branch = balance(isp116x, ep->period, ep->load);
    	if (ret < 0)
    		goto fail;
    
    the problem is that ret and balance are of the type int, and ep->branch is u16.
    so the int balance() returns gets reduced to u16 and then converted to an int again,
    which removes the sign. Maybe the following little c program can explain it better:
    d5ce1379
isp116x-hcd.c 44.5 KB