BUG-Fix: Do not do ioctls on fd == 0

[usb-driver] / usb-driver.c

diff --git a/usb-driver.c b/usb-driver.c
index be08eff4236fec1f5d5de7194225f2926a92d874..d38da3e4dfdc2bf8a5a4321beec0e7cff41b14c5 100644 (file)
--- a/usb-driver.c
+++ b/usb-driver.c
@@ -660,7 +660,7 @@ int ioctl(int fd, int request, ...) {
        argp = va_arg (args, void *);
        va_end (args);
 
-       if (fd == windrvrfd)
+       if (windrvrfd && (fd == windrvrfd))
                ret = do_wdioctl(fd, request, argp);
        else
                ret = (*ioctl_func) (fd, request, argp);